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 Extensive properties of a thermodynamic system depend upon the __________ of the system. Temperature Mass Pressure Specific volume Temperature Mass Pressure Specific volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression, ΔG = nRT .In P₂/P₁ , gives the free energy change During cooling of an ideal gas Under reversible isothermal volume change With pressure changes at constant temperature During heating of an ideal gas During cooling of an ideal gas Under reversible isothermal volume change With pressure changes at constant temperature During heating of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas. Same as Half Less than More than Same as Half Less than More than ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ 3 m³ ) is max imum, when the value of 'n' is 1 1.44 1.66 1 1.44 1.66 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which is not a refrigerant? C₂H₄Cl₂ SO₂ CCl₂F₂ NH₃ C₂H₄Cl₂ SO₂ CCl₂F₂ NH₃ ANSWER DOWNLOAD EXAMIANS APP
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