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? 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 Carnot refrigeration cycle Vapor compression cycle using expansion engine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process. Isometric Isobaric Isothermal Isentropic Isometric Isobaric Isothermal Isentropic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by Decrease in enthalpy corresponding to evolution of heat No change in enthalpy Decrease of entropy Increase in enthalpy corresponding to absorption of heat Decrease in enthalpy corresponding to evolution of heat No change in enthalpy Decrease of entropy Increase in enthalpy corresponding to absorption of heat ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics (∂H/∂T)p is the mathematical expression for CV Gibbs free energy Entropy change None of these CV Gibbs free energy Entropy change None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is an undesirable characteristics of a refrigerant ? 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 None of these It should be non-explosive 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 None of these It should be non-explosive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Sound waves propagation in air exemplifies an __________ process. Isothermal Isometric Adiabatic None of these Isothermal Isometric Adiabatic None of these ANSWER DOWNLOAD EXAMIANS APP
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