Chemical Engineering Thermodynamics The change in Gibbs freee energy for vaporisation of a pure substance is Positive Zero Negative May be positive or negative Positive Zero Negative May be positive or negative ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is 349 1000 667 651 349 1000 667 651 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Van Laar equation deals with the activity co-efficients in Binary solutions Azeotropic mixture only Ternary solutions None of these Binary solutions Azeotropic mixture only Ternary solutions None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pick out the undesirable property for a good refrigerant. High thermal conductivity Large latent heat of vaporisation Low freezing point High viscosity High thermal conductivity Large latent heat of vaporisation Low freezing point High viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in Volume Enthalpy Both A & B Neither A nor B Volume Enthalpy Both A & B Neither A nor B 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 U decreases but S is constant U is constant but S decreases Its internal energy (U) decreases and its entropy (S) increases U and S both decreases U decreases but S is constant U is constant but S decreases Its internal energy (U) decreases and its entropy (S) increases U and S both decreases ANSWER DOWNLOAD EXAMIANS APP
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