Chemical Engineering Thermodynamics A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect? Carnot refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve Air refrigeration cycle Carnot refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve Air refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What happens in a reversible adiabatic compression? Pressure is constant Temperature is constant Heating occurs Cooling occurs Pressure is constant Temperature is constant Heating occurs Cooling occurs ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Gibbs free energy at constant pressure and temperature under equilibrium conditions is Minimum ∞ Maximum Minimum ∞ Maximum ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A system is said to be at equilibrium, if the entropy of the system has reached __________ value. Maximum Minimum None of these Zero Maximum Minimum None of these Zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The total change in the enthalpy of a system is independent of the None of these Number of intermediate chemical reactions involved State of combination and aggregation in the beginning and at the end of the reaction Pressure and temperature None of these Number of intermediate chemical reactions involved State of combination and aggregation in the beginning and at the end of the reaction Pressure and temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Cv for an ideal gas Is independent of volume only Does not depend upon temperature Is independent of both pressure and volume Is independent of pressure only Is independent of volume only Does not depend upon temperature Is independent of both pressure and volume Is independent of pressure only ANSWER DOWNLOAD EXAMIANS APP
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