Chemical Engineering Thermodynamics The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is More pronounced Data insufficient, can't be predicted Less pronounced Equal More pronounced Data insufficient, can't be predicted Less pronounced Equal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not a common refrigerant? Freon-12 Carbon dioxide Ammonia Ethylene Freon-12 Carbon dioxide Ammonia Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Boyle's law for gases states that P ∝ 1/V, when temperature is constant P/V = constant, for any gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ V, at constant temperature & mass of the gas P ∝ 1/V, when temperature is constant P/V = constant, for any gas P ∝ 1/V, when temperature & mass of the gas remain constant P ∝ V, at constant temperature & mass of the gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure. Fugacity A, B, and C Partial pressure Activity co-efficient Fugacity A, B, and C Partial pressure Activity co-efficient ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The free energy change for a chemical reaction is given by (where, K = equilibrium constant) -RT lnK -R lnK T lnK RT lnK -RT lnK -R lnK T lnK RT lnK ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Co-efficient of Performance (COP) of a refrigerator is the ratio of the Refrigeration obtained to the work required Lower to higher temperature Work required to refrigeration obtained Higher to lower temperature Refrigeration obtained to the work required Lower to higher temperature Work required to refrigeration obtained Higher to lower temperature ANSWER DOWNLOAD EXAMIANS APP
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