Chemical Engineering Thermodynamics Free energy Remains unchanged in reversible processes carried at constant temperature and pressure Change during a spontaneous process has a negative value Decreases in all spontaneous (or irreversible) processes All of these Remains unchanged in reversible processes carried at constant temperature and pressure Change during a spontaneous process has a negative value Decreases in all spontaneous (or irreversible) processes All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity and pressure are numerically equal, when the gas is In standard state At high pressure At low temperature In ideal state In standard state At high pressure At low temperature In ideal state ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system Its internal energy (U) decreases and its entropy (S) increases U is constant but S decreases U decreases but S is constant U and S both decreases Its internal energy (U) decreases and its entropy (S) increases U is constant but S decreases U decreases but S is constant U and S both decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In Joule-Thomson porous plug experiment, the Temperature remains constant None of these Entire apparatus is exposed to surroundings Enthalpy does not remain constant Temperature remains constant None of these Entire apparatus is exposed to surroundings Enthalpy does not remain constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In a turbine, the fluid expands almost Isothermally None of these Isobarically Adiabatically Isothermally None of these Isobarically Adiabatically ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)? Carnot cycle Vapour compression with a reversible expansion engine Air cycle Ordinary vapour compression cycle Carnot cycle Vapour compression with a reversible expansion engine Air cycle Ordinary vapour compression cycle ANSWER DOWNLOAD EXAMIANS APP
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