Chemical Engineering Thermodynamics Entropy change of mixing two liquid substances depends upon the Quantity (i.e. number of moles) Both A and B Neither A nor B Molar concentration Quantity (i.e. number of moles) Both A and B Neither A nor B Molar concentration 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 -RT ln 0.5 -2 RT ln 0.5 0.5 RT 2 RT -RT ln 0.5 -2 RT ln 0.5 0.5 RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics High pressure steam is expanded adiabati-cally and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process: Δ H = 0 and ΔS ≠ 0 Δ H = 0 and ΔS = 0 Δ H ≠ 0 and ΔS = 0 Δ H ≠ 0 and ΔS ≠ 0 Δ H = 0 and ΔS ≠ 0 Δ H = 0 and ΔS = 0 Δ H ≠ 0 and ΔS = 0 Δ H ≠ 0 and ΔS ≠ 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law ) V₁-V₂ V₁/V₂ V₁.V₂ V₂/V₁ V₁-V₂ V₁/V₂ V₁.V₂ V₂/V₁ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A change in state involving a decrease in entropy can be spontaneous, only if It takes place at constant volume It takes place isothermally It is exothermic It is isenthalpic It takes place at constant volume It takes place isothermally It is exothermic It is isenthalpic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Co-efficient of Performance (COP) of a refrigerator is the ratio of the Work required to refrigeration obtained Higher to lower temperature Lower to higher temperature Refrigeration obtained to the work required Work required to refrigeration obtained Higher to lower temperature Lower to higher temperature Refrigeration obtained to the work required ANSWER DOWNLOAD EXAMIANS APP
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