Chemical Engineering Thermodynamics Which of the following has the minimum value of COP for a given refrigeration effect? Reverse Carnot cycle Ordinary vapour-compression cycle Vapour-compression process with a reversible expansion engine Air refrigeration cycle Reverse Carnot cycle Ordinary vapour-compression cycle Vapour-compression process with a reversible expansion engine Air refrigeration cycle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an irreversible process involving only pressure-volume work (dF)T, p (dA)T, v >0 (dF)T, p = 0 (dF)T, p > 0 (dF)T, p (dA)T, v >0 (dF)T, p = 0 (dF)T, p > 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The number of degrees of freedom for a mixture of ice and water (liquid) are 0 1 2 3 0 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics With increase in temperature, the atomic heat capacities of all solid elements Increases Decreases linearly Remains unchanged Decreases Increases Decreases linearly Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by Increase in enthalpy corresponding to absorption of heat Decrease in enthalpy corresponding to evolution of heat Decrease of entropy No change in enthalpy Increase in enthalpy corresponding to absorption of heat Decrease in enthalpy corresponding to evolution of heat Decrease of entropy No change in enthalpy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an exothremic reaction Enthalpy change is zero Only enthalpy change (ΔH) is negative Only internal energy change (ΔE) is negative Both ΔH and ΔE are negative Enthalpy change is zero Only enthalpy change (ΔH) is negative Only internal energy change (ΔE) is negative Both ΔH and ΔE are negative ANSWER DOWNLOAD EXAMIANS APP
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