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 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 Its internal energy (U) decreases and its entropy (S) increases U is constant but S decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat of formation of an element in its standard state is < 0 A function of pressure > 0 < 0 A function of pressure > 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The chemical potential for a pure substance is __________ its partial molal free energy. Less than Equal to Not related to More than Less than Equal to Not related to More than ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Generation of heat by friction is an example of a/an __________ change. Adiabatic Irreversible Reversible Isothermal Adiabatic Irreversible Reversible Isothermal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is Less More Dependent on climatic conditions Same Less More Dependent on climatic conditions Same ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law. Lavoisier and Laplace Kirchoff's None of these Hess's Lavoisier and Laplace Kirchoff's None of these Hess's ANSWER DOWNLOAD EXAMIANS APP
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