Chemical Engineering Thermodynamics Free energy 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 Remains unchanged in reversible processes carried at constant temperature and pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise. Increases Decreases Remains unchanged Decreases linearly Increases Decreases Remains unchanged Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process. Adiabatic Isobaric Isothermal None of these Adiabatic Isobaric Isothermal None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At the critical point of a substance All of these The surface tension vanishes Liquid and vapour have the same density There is no distinction between liquid and vapour phases All of these The surface tension vanishes Liquid and vapour have the same density There is no distinction between liquid and vapour phases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Generation of heat by friction is an example of a/an __________ change. Irreversible Reversible Adiabatic Isothermal Irreversible Reversible Adiabatic Isothermal ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is More Less Unpredictable; depends on the particular reaction Same More Less Unpredictable; depends on the particular reaction Same ANSWER DOWNLOAD EXAMIANS APP
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