Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Simultaneous pressure & temperature change Both B and C Cooling Heating Simultaneous pressure & temperature change Both B and C Cooling Heating ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respetively, the Carnot COP will be Data insufficient, can't be found out 0.168 5.2 6.2 Data insufficient, can't be found out 0.168 5.2 6.2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of Temperature only Temperature and pressure only Temperature, pressure and liquid composition xi only Temperature, pressure, liquid composition xi and vapour composition yi Temperature only Temperature and pressure only Temperature, pressure and liquid composition xi only Temperature, pressure, liquid composition xi and vapour composition yi ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The principle applied in liquefaction of gases is Adiabatic expansion Joule-Thomson effect Neither A nor B Both A and B Adiabatic expansion Joule-Thomson effect Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches That of the heat of reaction Unity Infinity Zero That of the heat of reaction Unity Infinity Zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The free energy change for a chemical reaction is given by (where, K = equilibrium constant) T lnK -R lnK -RT lnK RT lnK T lnK -R lnK -RT lnK RT lnK ANSWER DOWNLOAD EXAMIANS APP
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