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 Vapor compression cycle using expansion engine Carnot refrigeration cycle Vapor compression cycle using expansion valve Air refrigeration cycle Vapor compression cycle using expansion engine Carnot refrigeration cycle Vapor compression cycle using expansion valve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Compound having large heat of formation is Less stable Either more or less stable ; depends on the compound More stable Not at all stable (like nascent O₂) Less stable Either more or less stable ; depends on the compound More stable Not at all stable (like nascent O₂) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates Easier plotting Use of only one graph for all gases More accurate plotting Covering of wide range Easier plotting Use of only one graph for all gases More accurate plotting Covering of wide range ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics __________ law of thermodynamics ascertains the direction of a particular spontaneous process. Second Third Zeroth First Second Third Zeroth First ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Boyle's law for gases states that P ∝ V, at constant temperature & mass of the gas P ∝ 1/V, when temperature is constant P ∝ 1/V, when temperature & mass of the gas remain constant P/V = constant, for any gas P ∝ V, at constant temperature & mass of the gas P ∝ 1/V, when temperature is constant P ∝ 1/V, when temperature & mass of the gas remain constant P/V = constant, for any gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure. Increases Remains unchanged May increase or decrease; depends on the gas Decreases Increases Remains unchanged May increase or decrease; depends on the gas Decreases ANSWER DOWNLOAD EXAMIANS APP
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