Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP Decreased COP No change in the value of COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP Decreased COP No change in the value of COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Heating of an ideal gas Expansion of a real gas Reversible isothermal volume change Cooling of a real gas Heating of an ideal gas Expansion of a real gas Reversible isothermal volume change Cooling of a real gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise. Decreases Decreases linearly Increases Remains unchanged Decreases Decreases linearly Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When dilute aqueous solutions of two salts are mixed, the process is associated with No change in temperature Change in temperature which is a function of composition Increase in temperature Decrease in temperature No change in temperature Change in temperature which is a function of composition Increase in temperature Decrease in temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Dry ice is Solid carbon dioxide Solid helium None of these Moisture free ice Solid carbon dioxide Solid helium None of these Moisture free ice ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid. Subcooled Saturated Non-solidifiable None of these Subcooled Saturated Non-solidifiable None of these ANSWER DOWNLOAD EXAMIANS APP
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