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

Question

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

Correct Answer :

A. PV

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A. ∞

B. 0

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Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

A. 1st

B. Zeroth

C. 3rd

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A. Volume

B. Mass

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Sublimation temperature of dry ice (solid CO₂) is __________ °C.

A. -273

B. 0

C. -78

D. 5

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Pick out the Clausius-Clapeyron equation from the following:

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Melting of ice is an example of an __________ process.

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The equation Tds = dE - PdV applies to

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Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?

A. Freon

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

A. 5 & 3

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Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor?

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

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Pick out the extensive property out of the following.

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What is the ratio of adiabatic compressibility to isothermal compressibility?

A. 1

B. < 1

C. > 1

D. >> 1

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If we increase the pressure on a substance (which is at its triple point), then the triple point

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For an isothermal process, the internal energy of a gas

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High __________ is an undesirable property for a good refrigerant.

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With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure

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Answer 1

A. Escaping tendencies of the same substance in different phases of a system

Answer 2

B. Relative volatility of a mixture of two miscible liquids

Answer 3

C. Behaviour of ideal gases

Answer 4

D. None of these

Answer 5

A. Equilibrium cannot be established

Answer 6

B. More ice will be formed

Answer 7

C. More water will be formed

Answer 8

D. Evaporation of water will take place

Answer 9

A. Enthalpy does not remain constant

Answer 10

B. Entire apparatus is exposed to surroundings

Answer 11

C. Temperature remains constant

Answer 12

D. None of these

Answer 13

A. Heat capacity

Answer 14

B. Molal heat capacity

Answer 15

C. Pressure

Answer 16

D. Concentration

Answer 17

A. State functions

Answer 18

B. Path functions

Answer 19

C. Intensive properties

Answer 20

D. Extensive properties

Answer 21

C. Maximum

Answer 22

D. Minimum

Answer 23

A. Enthalpy

Answer 24

B. Pressure

Answer 25

C. Entropy

Answer 26

D. None of these

Answer 27

A. Directly proportional to pressure

Answer 28

B. Inversely proportional to pressure

Answer 29

C. Unity at all pressures

Answer 30

D. None of these

Answer 31

A. Lewis-Randall rule

Answer 32

B. Statement of Van't Hoff Equation

Answer 33

C. Le-Chatelier's principle

Answer 34

D. None of these

Answer 35

D. None of these

Answer 36

A. Slower than Y

Answer 37

B. Faster than Y

Answer 38

C. Three times slower than Y

Answer 39

D. Three times faster than Y

Answer 40

C. Critical temperature

Answer 41

D. None of these

Answer 42

A. μ_i = (∂F/∂n_i)_{T, P, ni}

Answer 43

B. μ_i = (∂A/∂n_i)_{T, P, ni}

Answer 44

C. μ_i = (∂F/∂n_i)_{T, P}

Answer 45

D. μ_i = (∂A/∂n_i)_{T, P}

Answer 46

A. dP/dT = ΔH/TΔV

Answer 47

B. ln P = - (ΔH/RT) + constant

Answer 48

C. ΔF = ΔH + T [∂(ΔF)/∂T]_P

Answer 49

D. None of these

Answer 50

A. Adiabatic

Answer 51

B. Isothermal

Answer 52

C. Isometric

Answer 53

D. None of these

Answer 54

A. Single phase fluid of varying composition

Answer 55

B. Single phase fluid of constant composition

Answer 56

C. Open as well as closed systems

Answer 57

D. Both (B) and (C)

Answer 58

A. Steam to ethylene ratio

Answer 59

B. Temperature

Answer 60

C. Pressure

Answer 61

D. None of these

Answer 62

A. Binary solutions

Answer 63

B. Ternary solutions

Answer 64

C. Azeotropic mixture only

Answer 65

D. None of these

Answer 66

B. Liquid sulphur dioxide

Answer 67

C. Methyl chloride

Answer 68

D. Ammonia

Answer 69

B. 3.987 & 1.987

Answer 70

C. 1.987 & 0.66

Answer 71

D. 0.66 & 1.987

Answer 72

A. d ln p/dt = H_vap/RT²

Answer 73

B. d ln p/dt = RT²/H_vap

Answer 74

C. dp/dt = RT²/H_vap

Answer 75

D. dp/dt = H_vap/RT²

Answer 76

A. Stirling

Answer 77

B. Brayton

Answer 78

C. Rankine

Answer 79

D. Both (B) and (C)

Answer 80

A. Concentration of the constituents only

Answer 81

B. Quantities of the constituents only

Answer 82

C. Temperature only

Answer 83

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

Answer 84

A. Surface tension

Answer 85

B. Free energy

Answer 86

C. Specific heat

Answer 87

D. Refractive index

Answer 88

A. Increases

Answer 89

B. Decreases

Answer 90

C. Remains unchanged

Answer 91

D. May increase or decrease; depends on the substance

Answer 92

A. Increases

Answer 93

B. Decreases

Answer 94

C. Remains unchanged

Answer 95

D. Data insufficient, can't be predicted

Answer 96

A. Specific heat

Answer 97

B. Latent heat of vaporisation

Answer 98

C. Viscosity

Answer 99

D. Specific vapor volume

Answer 100

A. Increases

Answer 101

B. Decreases

Answer 102

C. Remain same

Answer 103

D. Decreases linearly

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

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

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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

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

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Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor?

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