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? Air refrigeration cycle Carnot refrigeration cycle Vapor compression cycle using expansion valve Vapor compression cycle using expansion engine Air refrigeration cycle Carnot refrigeration cycle Vapor compression cycle using expansion valve Vapor compression cycle using expansion engine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In any spontaneous process, the __________ free energy decreases. Helmholtz Neither A nor B Gibbs Both of the listed here Helmholtz Neither A nor B Gibbs Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For a real gas, the chemical potential is given by RT dlnP R dlnf None of these RT dlnf RT dlnP R dlnf None of these RT dlnf ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________ point. Boyle Triple Boiling Freezing Boyle Triple Boiling Freezing ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pick out the undesirable property for a good refrigerant. High thermal conductivity High viscosity Low freezing point Large latent heat of vaporisation High thermal conductivity High viscosity Low freezing point Large latent heat of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The energy of activation of exothermic reaction is Not possible to predict Very large compared to that for en-dothermic reaction Negative Zero Not possible to predict Very large compared to that for en-dothermic reaction Negative Zero ANSWER DOWNLOAD EXAMIANS APP
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