Q. An ideal gas is taken around the cycle ABCA as shown in P-V diagram below. The work done by the gas during the cycle is equal to

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Q. The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is

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Q. Gibbs free energy (G) is represented by, G = H - TS, whereas Helmholtz free energy, (A) is given by, A = E - TS. Which of the following is the Gibbs-Helmholtz equation

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Q. Which of the following is clausius-Clayperon equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?

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Q. Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

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Q. Which is not constant for an ideal gas ?

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Q. Following is the mathematical expression for

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Q. The ratio of equilibrium constants (Kp₂/Kp₁) at two different temperatures is given by

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Q. Consider the process A & B shown in the figure given below. In this case, it is possible that

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Q. Joule-Thomson co-efficient which is defined by equation given below, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is

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Q. The equation relating E, P, V and T which is true for all substances under all conditions is given by following equation .This equation is called the

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Q. Cᵥ is given by

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Q. The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature)

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Q. Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is

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Q. A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

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Q. Maxwell's relation corresponding to the identity, dH = dS = Vdp + ∑μᵢ dnᵢ is

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Q. Pick out the Claussius-Clayperon equation from the following:

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Q. On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cᵨ/Cᵥ)

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Q. Gibbs-Helmholtz equation is

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Q. Which of the following identities can be most easily used to verify steam table data for superheated steam.

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