Q. Which is not a refrigerant ?

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Q. The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.

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

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Q. Mollier diagram is a plot of

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Q. The activity of an ideal gas is numerically __________ its pressure.

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Q. Specific heat of a gas for a reversible adiabatic process is

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

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Q. Partial molar free energy of an element A in solution is same as its

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Q. Free energy change at equilibrium is

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Q. Heat pump

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Q. The temperature at which both liquid and gas phases are identical, is called the __________ point.

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Q. The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.

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Q. Co-efficient of Performance (COP) of a refrigerator is the ratio of the

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Q. A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg⁻¹. K⁻¹. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg⁻¹ , K⁻¹ is

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Q. dW and dq are not the exact differential, because q and W are

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Q. Entropy change of mixing two liquid substances depends upon the

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Q. The four properties of a system viz. P, V, T, S are related by __________ equation.

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

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Q. Pick out the wrong statement.

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Q. The principle applied in liquefaction of gases is

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