Q. "When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs". This phenomenon is related to the

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Q. The internal energy of an ideal gas does not change in a reversible __________ process.

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Q. The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for

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Q. With increase in temperature, the internal energy of a substance

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Q. It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions.

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Q. For a constant pressure reversible process, the enthalpy change (ΔH) of the system is

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Q. The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is

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Q. Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.

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Q. Entropy is a/an

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Q. In the reaction, represented by, 2SO₂ + O₂ ↔ 2SO₃; ΔH = - 42 kcal; the forward reaction will be favoured by

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Q. At triple point (for one component system), vapour pressure of solid as compared to that of liquid will be

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Q. Boiling of liquid is accompanied with increase in the

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Q. Change of state namely evaportation condensation, freezing and melting is an __________ process.

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Q. Which of the following is not an equation of state?

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Q. A gas shows deviation from ideal behaviour at

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Q. The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is

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Q. 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

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Q. Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

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

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Q. The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

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