Chemical Engineering Thermodynamics Entropy of a substance remains constant during a/an __________ change. None of these Irreversible isothermal Reversible adiabatic Reversible isothermal None of these Irreversible isothermal Reversible adiabatic Reversible isothermal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In an ideal refrigeration cycle, the change in internal energy of the fluid is Either of the above three ; depends on the nature of refrigerant +ve -ve Either of the above three ; depends on the nature of refrigerant +ve -ve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics 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 = Cp/Cv) ) (∂P/∂V)S = y(∂P/∂V)T (∂P/∂V)S = 1/y(∂P/∂V)T (∂P/∂V)S = (∂P/∂V)T (∂P/∂V)S = [(∂P/∂V)T]Y (∂P/∂V)S = y(∂P/∂V)T (∂P/∂V)S = 1/y(∂P/∂V)T (∂P/∂V)S = (∂P/∂V)T (∂P/∂V)S = [(∂P/∂V)T]Y ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Claussius-Clayperon equation gives accurate result, when the Vapour pressure is relatively low and the temperature does not vary over wide limits All of these Volume in the liquid state is negligible compared with that in the vapour state Vapour obeys the ideal gas law and the latent heat of vaporisation is constant Vapour pressure is relatively low and the temperature does not vary over wide limits All of these Volume in the liquid state is negligible compared with that in the vapour state Vapour obeys the ideal gas law and the latent heat of vaporisation is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Helmholtz free energy (A) is defined as A = H - TS A = H + TS None of these A = E - TS A = H - TS A = H + TS None of these A = E - TS ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is -2 RT ln 0.5 2 RT 0.5 RT -RT ln 0.5 -2 RT ln 0.5 2 RT 0.5 RT -RT ln 0.5 ANSWER DOWNLOAD EXAMIANS APP
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