Chemical Engineering Thermodynamics The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by No change in enthalpy Decrease of entropy Decrease in enthalpy corresponding to evolution of heat Increase in enthalpy corresponding to absorption of heat No change in enthalpy Decrease of entropy Decrease in enthalpy corresponding to evolution of heat Increase in enthalpy corresponding to absorption of heat ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Isobaric process means a constant process. Volume Pressure Entropy Temperature Volume Pressure Entropy Temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Cooling Both B and C Heating Simultaneous pressure & temperature change Cooling Both B and C Heating Simultaneous pressure & temperature change ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pick out the undesirable property for a good refrigerant. High thermal conductivity High viscosity Large latent heat of vaporisation Low freezing point High thermal conductivity High viscosity Large latent heat of vaporisation Low freezing point ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not a common refrigerant? Carbon dioxide Ethylene Freon-12 Ammonia Carbon dioxide Ethylene Freon-12 Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Cp of a gas at its critical temperature and pressure Equals 1 kcal/kmol °K Becomes infinity Becomes zero Equals 0.24 kcal/kmol °K Equals 1 kcal/kmol °K Becomes infinity Becomes zero Equals 0.24 kcal/kmol °K ANSWER DOWNLOAD EXAMIANS APP
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