Q. The total change in the enthalpy of a system is independent of the

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Q. Number of phases in a colloidal system are

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Q. Free energy changes for two reaction mechanism 'X' and 'Y' are respectively - 15 and - 5 units. It implies that X is

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Q. The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

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Q. The unit of fugacity is the same as that of the

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Q. Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.

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Q. A large iceberg melts at the base, but not at the top, because of the reason that

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Q. At the critical point of a substance

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Q. A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then(where, Δ S₁ and Δ Sʀ are the entropy changes of the system for the irreversible and reversible processes respectively)

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Q. What is the value of Joule-Thomson co-efficient for an ideal gas ?

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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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