Q. COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about

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Q. The number of degrees of freedom for a mixture of ice and water (liquid) are

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Q. On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

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Q. Domestic refrigerator usually works on the __________ refrigeration cycle.

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Q. Gibbs-Duhem equation

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Q. Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is

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Q. The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cᵥ), depends upon its

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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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