Q. A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively)

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Q. y = specific heat ratio of an ideal gas is equal to

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Q. The reaction A (l) → R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are

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Q. Cᵨ - Cᵥ = R is valid for __________ gases.

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Q. At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure.

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Q. Which is an example of closed system ?

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Q. "Dry ice" is

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Q. Which of the following non-flow reversible compression processes require maximum work ?

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Q. Pick out the correct statement.

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Q. "When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change." This is called the

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Q. Third law of thermodynamics is helpful in

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Q. Fugacity and pressure are numerically equal, when the gas is

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Q. Refrigerants commonly used for domestic refrigerators are

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Q. Solid and liquid phases of a substance are in equilibrium at the

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Q. Absolute zero temperature signifies the

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Q. Sound waves propagation in air exemplifies an __________ process.

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Q. For equilibrium process (i.e. reversible) in an isolated system

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Q. The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of

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Q. With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure

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Q. For an ideal gas, the enthalpy

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