Chemical Engineering Thermodynamics The adiabatic throttling process of a perfect gas is one of constant enthalpy In which there is a temperature drop Which is exemplified by a non-steady flow expansion In which there is an increase in temperature Which can be performed in a pipe with a constriction In which there is a temperature drop Which is exemplified by a non-steady flow expansion In which there is an increase in temperature Which can be performed in a pipe with a constriction ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for Heating of a substance Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change Heating of a substance Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The reaction A (l) R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are 1 2 3 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A domestic refrigerator has a/an __________ cooled condenser. Evaporative Air Gas Water Evaporative Air Gas Water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics With increase in pressure (above atmospheric pressure), the Cp of a gas Increases Remains unchanged First decreases and then increases Decreases Increases Remains unchanged First decreases and then increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an exothremic reaction Enthalpy change is zero Only internal energy change (ΔE) is negative Both ΔH and ΔE are negative Only enthalpy change (ΔH) is negative Enthalpy change is zero Only internal energy change (ΔE) is negative Both ΔH and ΔE are negative Only enthalpy change (ΔH) is negative ANSWER DOWNLOAD EXAMIANS APP
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