Heat is added at constant temperature in an ideal __________ cycle.

Question

Heat is added at constant temperature in an ideal __________ cycle.

A. Stirling

B. Brayton

C. Rankine

D. None of these

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Comment

There is a change in __________ during the phase transition.

A. Volume

B. Pressure

C. Temperature

D. All a, b & c

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Pick out the extensive property out of the following.

A. Surface tension

B. Free energy

C. Specific heat

D. Refractive index

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A change in state involving a decrease in entropy can be spontaneous, only if

A. It is exothermic

B. It is isenthalpic

C. It takes place isothermally

D. It takes place at constant volume

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PV^y = constant, holds good for an isentropic process, which is

A. Reversible and isothermal

B. Isothermal and irreversible

C. Reversible and adiabatic

D. Adiabatic and irreversible

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If the molar heat capacities (C_p or C_v) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will

A. Increase

B. Decrease

C. Remain unaltered

D. Increase or decrease; depends on the particular reaction

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To obtain integrated form of Clausius-Clapeyron equation, ln (P₂/P₁) = (ΔH_V/R) (1/T₁ - 1/T₂) from the exact Clapeyron equation, it is assumed that the

A. Volume of the liquid phase is negligible compared to that of vapour phase

B. Vapour phase behaves as an ideal gas

C. Heat of vaporisation is independent of temperature

D. All (A), (B) & (C)

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If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.

A. 100

B. 50

C. 205

D. 200

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COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about

A. 0.5

B. 3.5

C. 4.5

D. 8.5

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Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

A. Fugacity

B. Partial pressure

C. Activity co-efficient

D. All (A), (B), and (C)

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Refrigeration capacity of a household refrigerator may be round about __________ tons.

A. 0.15

B. 1.5

C. 4.5

D. 6.5

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For a real gas, the chemical potential is given by

A. RT d ln P

B. RT d ln f

C. R d ln f

D. None of these

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In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

A. Enhanced COP

B. Decreased COP

C. No change in the value of COP

D. Increased or decreased COP; depending upon the type of refrigerant

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C_v is given by

A. (∂E/∂T)_V

B. (∂E/∂V)_T

C. (∂E/∂P)_V

D. (∂V/∂T)_P

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The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are

A. 5 & 3

B. 3.987 & 1.987

C. 1.987 & 0.66

D. 0.66 & 1.987

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Clausius-Clapeyron Equation gives accurate result, when the

A. Vapour pressure is relatively low and the temperature does not vary over wide limits

B. Vapour obeys the ideal gas law and the latent heat of vaporisation is constant

C. Volume in the liquid state is negligible compared with that in the vapour state

D. All (A), (B) and (C)

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A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

A. Sub-cooled

B. Saturated

C. Non-solidifiable

D. None of these

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A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S₁ and Δ S_R are the entropy changes of the system for the irreversible and reversible processes respectively)

A. Δ S₁ is always < Δ S_R

B. Δ S₁ is sometimes > Δ S_R

C. Δ S₁ is always > Δ S_R

D. Δ S₁ is always = Δ S_R

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Pick out the wrong statement.

A. Minimum number of degree of freedom of a system is zero

B. Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and hydrogen is 4

C. For a two phase system in equilibrium made up of four non-reacting chemical species, the number of degrees of freedom is 4

D. Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation

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When pressure is applied on the system, ice ↔ water, then

A. Equilibrium cannot be established

B. More ice will be formed

C. More water will be formed

D. Evaporation of water will take place

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Pick out the correct statement.

A. A real gas on expansion in vacuum gets heated up

B. An ideal gas on expansion in vacuum gets cooled

C. An ideal gas on expansion in vacuum gets heated up

D. A real gas on expansion in vacuum cools down whereas ideal gas remains unaffected

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Standard temperature and pressure (S.T.P.) is

A. 0°C and 750 mm Hg

B. 15°C and 750 mm Hg

C. 0°C and 1 kgf/cm2

D. 15°C and 1 kgf/cm2

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An ideal monatomic gas is taken round the cycle ABCDA as shown below in the P-V diagram. The work done during the cycle is

A. PV

B. 2PV

C. PV/2

D. 0

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__________ decreases during adiabatic throttling of a perfect gas.

A. Entropy

B. Temperature

C. Enthalpy

D. Pressure

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The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is

A. 0

B. ∞

C. +ve

D. -ve

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Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system?

A. Expansion valve

B. Condenser

C. Refrigerator

D. Compressor

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In the reaction, H₂ +I₂ 2HI, addition of an inert gas will

A. Increase the partial pressure of H₂

B. Increase the partial pressure of I₂

C. Increase the total pressure and hence shift the equilibrium towards the right

D. Not affect the equilibrium conditions

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The molar excess Gibbs free energy, g^E, for a binary liquid mixture at T and P is given by, (g^E/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

A. A . x₂²

B. Ax₁

C. Ax₂

D. Ax₁²

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Refrigerants commonly used for domestic refrigerators are

A. Ethyl chloride or methyl chloride

B. Freon-12

C. Propane

D. NH3 or CO2

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Gibbs-Helmholtz equation is

A. ΔF = ΔH + T [∂(ΔF)/∂T]P

B. ΔF = ΔH - TΔT

C. d(E - TS) T, V < 0

D. dP/dT = ΔH_vap/T.ΔV_vap

Discuss this answer

Dry ice is

A. Moisture free ice

B. Solid helium

C. Solid carbon dioxide

D. None of these

Discuss this answer

Accepted Answer

A. Stirling

Heat is added at constant temperature in an ideal __________ cycle.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

There is a change in __________ during the phase transition.

Pick out the extensive property out of the following.

A change in state involving a decrease in entropy can be spontaneous, only if

PV^y = constant, holds good for an isentropic process, which is

If the molar heat capacities (C_p or C_v) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will

To obtain integrated form of Clausius-Clapeyron equation, ln (P₂/P₁) = (ΔH_V/R) (1/T₁ - 1/T₂) from the exact Clapeyron equation, it is assumed that the

If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.

COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about

Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

Refrigeration capacity of a household refrigerator may be round about __________ tons.

For a real gas, the chemical potential is given by

In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

C_v is given by

The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are

Clausius-Clapeyron Equation gives accurate result, when the

A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S₁ and Δ S_R are the entropy changes of the system for the irreversible and reversible processes respectively)

Pick out the wrong statement.

When pressure is applied on the system, ice ↔ water, then

Pick out the correct statement.

Standard temperature and pressure (S.T.P.) is

An ideal monatomic gas is taken round the cycle ABCDA as shown below in the P-V diagram. The work done during the cycle is

__________ decreases during adiabatic throttling of a perfect gas.

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is

Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system?

In the reaction, H₂ +I₂ 2HI, addition of an inert gas will

The molar excess Gibbs free energy, g^E, for a binary liquid mixture at T and P is given by, (g^E/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is

Refrigerants commonly used for domestic refrigerators are

Gibbs-Helmholtz equation is

Dry ice is

Also checkout

Heat is added at constant temperature in an ideal __________ cycle.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

There is a change in __________ during the phase transition.

Pick out the extensive property out of the following.

A change in state involving a decrease in entropy can be spontaneous, only if

PVy = constant, holds good for an isentropic process, which is

If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will

To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (ΔHV/R) (1/T1 - 1/T2) from the exact Clapeyron equation, it is assumed that the

If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________ c.c.

COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about

Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

Refrigeration capacity of a household refrigerator may be round about __________ tons.

For a real gas, the chemical potential is given by

In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Cv is given by

The value of Cp & Cv respectively for monatomic gases in Kcal/kg Mole.°K are

Clausius-Clapeyron Equation gives accurate result, when the

A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively)

Pick out the wrong statement.

When pressure is applied on the system, ice ↔ water, then

Pick out the correct statement.

Standard temperature and pressure (S.T.P.) is

An ideal monatomic gas is taken round the cycle ABCDA as shown below in the P-V diagram. The work done during the cycle is

__________ decreases during adiabatic throttling of a perfect gas.

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is

Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system?

In the reaction, H2 +I2 2HI, addition of an inert gas will

The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is

Refrigerants commonly used for domestic refrigerators are

Gibbs-Helmholtz equation is

Dry ice is

Also checkout

PV^y = constant, holds good for an isentropic process, which is

If the molar heat capacities (C_p or C_v) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will

To obtain integrated form of Clausius-Clapeyron equation, ln (P₂/P₁) = (ΔH_V/R) (1/T₁ - 1/T₂) from the exact Clapeyron equation, it is assumed that the

C_v is given by

The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S₁ and Δ S_R are the entropy changes of the system for the irreversible and reversible processes respectively)

In the reaction, H₂ +I₂ 2HI, addition of an inert gas will

The molar excess Gibbs free energy, g^E, for a binary liquid mixture at T and P is given by, (g^E/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is