Chemical Engineering Thermodynamics A system is said to be at equilibrium, if the entropy of the system has reached __________ value. None of these Zero Maximum Minimum None of these Zero Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will Remain unchanged Increase First fall and then rise Decrease Remain unchanged Increase First fall and then rise Decrease ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Equilibrium constant decreases as the temperature None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T₁ and T₂ is given by T₂/R1 T₁/T₂ T₂/(T₁-T₂) T₁/(T₁-T₂) T₂/R1 T₁/T₂ T₂/(T₁-T₂) T₁/(T₁-T₂) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Throttling process is a/an __________ process. Irreversible and constant enthalpy Reversible and isothermal Reversible and constant entropy Reversible and constant enthalpy Irreversible and constant enthalpy Reversible and isothermal Reversible and constant entropy Reversible and constant enthalpy 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
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