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 Air refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve Carnot refrigeration cycle Air refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases. Decreases exponentially Increases Decreases Remains constant Decreases exponentially Increases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics No work is done by the system, when a reaction occurs at constant Pressure Volume None of these Temperature Pressure Volume None of these Temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The thermodynamic law, PVy = constant, is not applicable in case of Adiabatic expansion of steam in a turbine Free expansion of an ideal gas Adiabatic compression of a perfect gas Ideal compression of air Adiabatic expansion of steam in a turbine Free expansion of an ideal gas Adiabatic compression of a perfect gas Ideal compression of air ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will First fall and then rise Increase Decrease Remain unchanged First fall and then rise Increase Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is 300(33/5) 300(32/7) 300(33/7) 300(35/7) 300(33/5) 300(32/7) 300(33/7) 300(35/7) ANSWER DOWNLOAD EXAMIANS APP
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