4

The internal energy of an incompressible fluid depends upon its

Pressure

Temperature

Both (A) & (B)

Neither (A) nor (B)

B. Temperature

4

0

1

2

3

4

Normal temperature and pressure (N.T.P.) corresponds to

0°C and 760 mm Hg

15°C and 760 mm Hg

20°C and 760 mm Hg

0°C and 1 kgf/cm2

4

Temperature

Pressure

Volume

Entropy

4

Internal energy is equal to the heat absorbed in case of a/an __________ process.

Constant volume

Polytropic

Constant pressure

4

-19.4

-30.2

55.2

-55.2

4

The equation, PV = nRT, is best obeyed by gases at

Low pressure & high temperature

High pressure & low temperature

Low pressure & low temperature

None of these

4

Critical

Triple

Freezing

Boiling

4

0

1

2

3

4

For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion does not depend on the

Steam to ethylene ratio

Temperature

Pressure

None of these

4

Tds = dE + dW

dE - dW = Tds

dW - dE = Tds

Tds - dW + dE >0

4

Mass

Momentum

Energy

None of these

4

The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.

Internal energy

Enthalpy

Gibbs free energy

Helmholtz free energy

4

100,000 kW

160,000 kW

200,000 kW

320,000 kW

4

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)

Δ S1 is always < Δ SR

Δ S1 is sometimes > Δ SR

Δ S1 is always > Δ SR

Δ S1 is always = Δ SR

4

Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O CO2 + H2, by

Low temperature and high pressure

Low temperature and low pressure

High temperature and high pressure

High temperature and low pressure

4

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is

Superheated vapour

Partially condensed vapour with quality of 0.9

Saturated vapour

Partially condensed vapour with quality of 0.1

4

As the time is passing, entropy of the universe

Is increasing

Is decreasing

Remain constant

Data insufficient, can't be predicted

4

Which of the following is not affected by temperature changes?

Fugacity

Activity co-efficient

Free energy

None of these

4

Stirling

Brayton

Rankine

None of these

4

Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

Polar

Non-polar

Both (A) & (B)

Neither (A) nor (B)

4

Volume

Density

Temperature

Pressure

4

Isothermal

Irreversible

Reversible

4

0.5

3.5

4.5

8.5

4

Which of the following is not correct for a reversible adiabatic process?

TVγ-1 = constant

p1-γ.TY = constant

PVγ = constant

None of these

4

0

2

1

3

4

Gibbs-Duhem

Maxwell's

Clapeyron

None of these

4

Work done may be calculated by the expression ∫ p dA for __________ processes.

Non-flow reversible

Both (A) and (B)

Neither (A) nor (B)

4

If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the

Maxwell's equation

Clausius-Clapeyron Equation

Van Laar equation

Nernst Heat Theorem

4

Volume

Pressure

Temperature

All a, b & c