Chemical Engineering Thermodynamics The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same. Kinematic viscosity None of these Temperature Work Kinematic viscosity None of these Temperature Work ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is affected by the temperature? Fugacity Activity co-efficient All of these Free energy Fugacity Activity co-efficient All of these Free energy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Free energy Change during a spontaneous process has a negative value All of these Decreases in all spontaneous (or irreversible) processes Remains unchanged in reversible processes carried at constant temperature and pressure Change during a spontaneous process has a negative value All of these Decreases in all spontaneous (or irreversible) processes Remains unchanged in reversible processes carried at constant temperature and pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation. Margules Van Laar Gibbs-Helmholtz Gibbs-Duhem Margules Van Laar Gibbs-Helmholtz Gibbs-Duhem ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Gibbs free energy of mixing at constant pressure and temperature is always + ve ∞ - ve + ve ∞ - ve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What happens in a reversible adiabatic compression? Heating occurs Temperature is constant Cooling occurs Pressure is constant Heating occurs Temperature is constant Cooling occurs Pressure is constant ANSWER DOWNLOAD EXAMIANS APP
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