Chemical Engineering Thermodynamics The necessary and sufficient condition for equilibrium between two phases is The chemical potential of each component should be same in the two phases The pressure should be same in the two phases The temperature of each phase should be same The concentration of each component should be same in the two phases The chemical potential of each component should be same in the two phases The pressure should be same in the two phases The temperature of each phase should be same The concentration of each component should be same in the two phases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in No change in the value of COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP No change in the value of COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The absolute entropy for all crystalline substances at absolute zero temperature is Zero Negative More than zero Indeterminate Zero Negative More than zero Indeterminate 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 effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is Data insufficient, can't be predicted More pronounced Equal Less pronounced Data insufficient, can't be predicted More pronounced Equal Less pronounced ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When pressure is applied on the system, ice ⟷ water, then Equilibrium can not be established More water will be formed More ice will be formed Evaporation of water will take place Equilibrium can not be established More water will be formed More ice will be formed Evaporation of water will take place ANSWER DOWNLOAD EXAMIANS APP
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