Q. Which of the following is an undesirable characteristics of a refrigerant ?

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Q. "The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances". This is the

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Q. What is the ratio of adiabatic compressibility to isothermal compressibility ?

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Q. The absolute entropy for all crystalline substances at absolute zero temperature is

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Q. Fugacity is most helpful in

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Q. The energy of activation of exothermic reaction is

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Q. Pick out the wrong statement.

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Q. In the reaction; N₂ + O₂ ↔ 2NO, increasing the pressure will result in

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Q. A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

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Q. Work done in an adiabatic process between two states depends on the

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Q. The number of degree of freedom for an azeotropic mixture of ethanol and water in vapour-liquid equilibrium, is

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Q. The internal energy of an ideal gas is a function of its __________ only.

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Q. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

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

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Q. The number of degrees of freedom at the triple point of water is

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

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

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Q. The first law of thermodynamics is a restatement of the law of conservation of

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Q. Joule-Thomson co-efficient for a perfect gas is

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Q. Work done is a

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