Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for Cooling of a substance Simultaneous heating and expansion of an ideal gas Reversible isothermal volume change Heating of a substance Cooling of a substance Simultaneous heating and expansion of an ideal gas Reversible isothermal volume change Heating of a substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the Neither A nor B Cold reservoir approaches zero Hot reservoir approaches infinity Either A or B Neither A nor B Cold reservoir approaches zero Hot reservoir approaches infinity Either A or B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In a P-V diagram (for an ideal gas), an isothermal curve will coincide withan adiabatic curve (through a point), when Cp < Cv Cp > Cv Cp ≥ Cv Cp = Cv Cp < Cv Cp > Cv Cp ≥ Cv Cp = Cv ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If we increase the pressure on a substance (which is at its triple point), then the triple point Decreases Remains unchanged Increases May increase or decrease ; depends on the substance Decreases Remains unchanged Increases May increase or decrease ; depends on the substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is affected by the temperature? All of these Free energy Fugacity Activity co-efficient All of these Free energy Fugacity Activity co-efficient ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity is a measure of the None of these Relative volatility of a mixture of two miscible liquids Behaviour of ideal gases Escaping tendencies of the same substance in different phases of a system None of these Relative volatility of a mixture of two miscible liquids Behaviour of ideal gases Escaping tendencies of the same substance in different phases of a system ANSWER DOWNLOAD EXAMIANS APP
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