Chemical Engineering Thermodynamics Entropy of a substance remains constant during a/an __________ change. Reversible isothermal None of these Irreversible isothermal Reversible adiabatic Reversible isothermal None of these Irreversible isothermal Reversible adiabatic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following will increase the volume of a real gas by four times ? Reducing temperature to one fourth at constant pressure Reducing the temperature to half and doubling the pressure Reducing pressure to one fourth at constant temperature Doubling the absolute temperature as well as pressure of the gas Reducing temperature to one fourth at constant pressure Reducing the temperature to half and doubling the pressure Reducing pressure to one fourth at constant temperature Doubling the absolute temperature as well as pressure of the gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a system is in equilibrium for all possible processes, the differential or finite change of entropy is > 0 < 0 None of these = 0 > 0 < 0 None of these = 0 ANSWER DOWNLOAD EXAMIANS APP
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 Entropy change for an irreversible isolated system is > 0 < 0 ∞ > 0 < 0 ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is Negative Zero Infinity One Negative Zero Infinity One ANSWER DOWNLOAD EXAMIANS APP
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