Chemical Engineering Thermodynamics The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same. Temperature Kinematic viscosity Work None of these Temperature Kinematic viscosity Work None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils It should be non-explosive None of these Its vapor pressure at the condenser temperature should be very high It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils It should be non-explosive None of these Its vapor pressure at the condenser temperature should be very high ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A change in state involving a decrease in entropy can be spontaneous, only if It is exothermic It takes place at constant volume It takes place isothermally It is isenthalpic It is exothermic It takes place at constant volume It takes place isothermally It is isenthalpic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy change of mixing two liquid substances depends upon the Neither A nor B Molar concentration Both A and B Quantity (i.e. number of moles) Neither A nor B Molar concentration Both A and B Quantity (i.e. number of moles) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas ) √T 1/√T T T² √T 1/√T T T² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Melting of ice is an example of an __________ process. None of these Adiabatic Isometric Isothermal None of these Adiabatic Isometric Isothermal ANSWER DOWNLOAD EXAMIANS APP
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