Q. Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal boiling point, kcal/kmol Tb = normal boiling point, °K )

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Q. Entropy of an ideal gas depends upon its

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Q. Isobaric process means a constant process.

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Q. No work is done by the system, when a reaction occurs at constant

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Q. 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

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Q. The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing.

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Q. In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )

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

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Q. Pick out the correct statement:

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Q. In any spontaneous process,

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Q. Which of the following is a thermodynamic property of a system ?

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Q. The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.

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Q. In jet refrigerators, the refrigerating fluid is practically always

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Q. Water on heating from 1 to 4°C

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Q. Pick out the correct statement.

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Q. Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.

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Q. Internal energy change of a system over one complete cycle in a cyclic process is

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Q. Heating of water under atmospheric pressure is an __________ process.

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Q. Van Laar equation deals with the activity co-efficients in

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Q. High __________ is an undesirable property for a good refrigerant.

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