Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change Heating of a substance Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change Heating of a substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Cp of a gas at its critical temperature and pressure Equals 1 kcal/kmol °K Equals 0.24 kcal/kmol °K Becomes zero Becomes infinity Equals 1 kcal/kmol °K Equals 0.24 kcal/kmol °K Becomes zero Becomes infinity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an ideal gas, the enthalpy Is independent of pressure Decreases with rise in pressure Is a path function Increases with rise in pressure Is independent of pressure Decreases with rise in pressure Is a path function Increases with rise in pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is (∂S/∂P)T = -(∂V/∂T)P (∂V/∂S)P = (∂T/∂P)S (∂S/∂V)T = (∂P/∂T)V (∂T/∂V)S = -(∂P/∂S)V (∂S/∂P)T = -(∂V/∂T)P (∂V/∂S)P = (∂T/∂P)S (∂S/∂V)T = (∂P/∂T)V (∂T/∂V)S = -(∂P/∂S)V ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Equilibrium constant decreases as the temperature Increases, for an endothermic reaction Increases, for an exothermic reaction Decreases, for an exothermic reaction None of these Increases, for an endothermic reaction Increases, for an exothermic reaction Decreases, for an exothermic reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an ideal solution, the value of activity co-efficient is > 1 1 < 1 > 1 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS