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? 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 Vapor compression cycle using expansion valve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when N = 1 N = y = 1.4 N = 0 N = 1.66 N = 1 N = y = 1.4 N = 0 N = 1.66 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The total change in the enthalpy of a system is independent of the Pressure and temperature None of these State of combination and aggregation in the beginning and at the end of the reaction Number of intermediate chemical reactions involved Pressure and temperature None of these State of combination and aggregation in the beginning and at the end of the reaction Number of intermediate chemical reactions involved ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics With increase in compression ratio, the efficiency of the otto engine Increases linearly Remains constant Increases Decreases Increases linearly Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work. Adiabatic None of these Isothermal Isentropic Adiabatic None of these Isothermal Isentropic ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is Virial equation of state? PV = A + B/V + C/V² + D/V³ + … None of these (p + a/V²)(V - b) = nRT PV = nRT PV = A + B/V + C/V² + D/V³ + … None of these (p + a/V²)(V - b) = nRT PV = nRT ANSWER DOWNLOAD EXAMIANS APP
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