### Related Questions

What is the correct answer?

4

# All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

What is the correct answer?

4

# Entropy change in case of reversible adiabatic process is

What is the correct answer?

4

# For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.

What is the correct answer?

4

# The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

What is the correct answer?

4

# Which of the following represents the Virial equation of state?

A. T = [RT/(V- b)] - [a/√T. V(V + b)]

B. PV/RT = 1 + (B/V) + (C/V^{2}) + ……

C. n_{1}u_{2} + μ_{2}μ_{1} = 0

What is the correct answer?

4

# Choose the condition that must be specified in order to liquify CO_{2} (triple point for CO_{2} is - 57°C and 5.2 atm).

A. Pressure must be kept below 5.2 atm

B. Temperature must be kept above - 57°C

C. Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C

D. Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively

What is the correct answer?

4

# Any substance above its critical temperature exists as

What is the correct answer?

4

# Third law of thermodynamics is helpful in

A. Prediction of the extent of a chemical reaction

B. Calculating absolute entropies of substances at different temperature

C. Evaluating entropy changes of chemical reaction

What is the correct answer?

4

# Pick out the undesirable property for a good refrigerant.

A. High thermal conductivity

C. Large latent heat of vaporisation

What is the correct answer?

4

# If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law.

What is the correct answer?

4

# The number of degrees of freedom at the triple point of water is

What is the correct answer?

4

# Out of the following refrigeration cycles, which one has maximum COP?

C. Ordinary vapor compression cycle

D. Vapor compression with a reversible expansion engine

What is the correct answer?

4

# Clapeyron Equation deals with the

A. Rate of change of vapour pressure with temperature

B. Effect of an inert gas on vapour pressure

C. Calculation of ΔF for spontaneous phase change

D. Temperature dependence of heat of phase transition

What is the correct answer?

4

# Entropy is a/an

What is the correct answer?

4

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

What is the correct answer?

4

# Sublimation temperature of dry ice (solid CO_{2}) is __________ °C.

What is the correct answer?

4

# Which is not constant for an ideal gas?

What is the correct answer?

4

# Equilibrium constant decreases as the temperature

A. Increases, for an exothermic reaction

B. Decreases, for an exothermic reaction

C. Increases, for an endothermic reaction

What is the correct answer?

4

# A refrigeration cycle is the same as a __________ cycle,

What is the correct answer?

4

# Heat of reaction at constant volume is identified with __________ change.

What is the correct answer?

4

# When a gas in a vessel expands, its internal energy decreases. The process involved is

What is the correct answer?

4

# Pick out the Clausius-Clapeyron equation from the following:

B. ln P = - (ΔH/RT) + constant

C. ΔF = ΔH + T [∂(ΔF)/∂T]_{P}

What is the correct answer?

4

# Which of the following is not a common refrigerant?

What is the correct answer?

4

# Which of the following liquid metals has the highest thermal conductivity?

What is the correct answer?

4

# Joule-Thomson co-efficient for a perfect gas is

What is the correct answer?

4

# Internal energy of an ideal gas

A. Increases with increase in pressure

B. Decreases with increase in temperature

C. Is independent of temperature

What is the correct answer?

4

# What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

What is the correct answer?

4

# Mollier chart is a __________ plot.

D. Temperature vs. entropy

What is the correct answer?

4

# For a spontaneous process, free energy

C. Decreases whereas the entropy increases

D. And entropy both decrease

What is the correct answer?

4

# Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.