Chemical Engineering Thermodynamics The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is (∂V/∂S)P = (∂T/∂P)S (∂S/∂V)T = (∂P/∂T)V (∂T/∂V)S = -(∂P/∂S)V (∂S/∂P)T = -(∂V/∂T)P (∂V/∂S)P = (∂T/∂P)S (∂S/∂V)T = (∂P/∂T)V (∂T/∂V)S = -(∂P/∂S)V (∂S/∂P)T = -(∂V/∂T)P ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a gas is subjected to adiabatic expansion, it gets cooled due to Energy spent in doing work Decrease in kinetic energy Decrease in velocity Decrease in temperature Energy spent in doing work Decrease in kinetic energy Decrease in velocity Decrease in temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Sound waves propagation in air exemplifies an __________ process. Isothermal Adiabatic Isometric None of these Isothermal Adiabatic Isometric None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat of reaction is Dependent on both pressure and temperature Dependent on temperature only Dependent on pressure only Independent of temperature changes Dependent on both pressure and temperature Dependent on temperature only Dependent on pressure only Independent of temperature changes ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The equation DU = Tds - PdV is applicable to infinitesimal changes occuring in An open system with changes in composition An open system of constant composition A closed system of constant composition A closed system with changes in composition An open system with changes in composition An open system of constant composition A closed system of constant composition A closed system with changes in composition 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 Air refrigeration cycle Vapor compression cycle using expansion valve Vapor compression cycle using expansion engine Carnot refrigeration cycle Air refrigeration cycle Vapor compression cycle using expansion valve Vapor compression cycle using expansion engine ANSWER DOWNLOAD EXAMIANS APP
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