Chemical Engineering Thermodynamics Which of the following has the minimum value of COP for a given refrigeration effect? Reverse Carnot cycle Ordinary vapour-compression cycle Vapour-compression process with a reversible expansion engine Air refrigeration cycle Reverse Carnot cycle Ordinary vapour-compression cycle Vapour-compression process with a reversible expansion engine Air refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) μ° + R/T lnf μ° + T lnf μ° + RT ln f μ°+ R lnf μ° + R/T lnf μ° + T lnf μ° + RT ln f μ°+ R lnf ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Dry ice is Moisture free ice None of these Solid carbon dioxide Solid helium Moisture free ice None of these Solid carbon dioxide Solid helium ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not affected by temperature changes? None of these Free energy Fugacity Activity co-efficient None of these Free energy Fugacity Activity co-efficient 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 pressure to one fourth at constant temperature Doubling the absolute temperature as well as pressure of the gas Reducing the temperature to half and doubling the pressure Reducing temperature to one fourth at constant pressure Reducing pressure to one fourth at constant temperature Doubling the absolute temperature as well as pressure of the gas Reducing the temperature to half and doubling the pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Out of the following refrigeration cycles, which one has maximum COP? Air cycle Ordinary vapor compression cycle Carnot cycle Vapor compression with a reversible expansion engine Air cycle Ordinary vapor compression cycle Carnot cycle Vapor compression with a reversible expansion engine ANSWER DOWNLOAD EXAMIANS APP
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