Chemical Engineering Thermodynamics What is the value of ln y (where y = activity co-efficient) for ideal gases? Zero Infinity Unity Negative Zero Infinity Unity Negative ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Critical compressibility factor for all substances Vary as square of the absolute temperature None of these Vary as square of the absolute pressure Are more or less constant (vary from 0.2 to 0.3) Vary as square of the absolute temperature None of these Vary as square of the absolute pressure Are more or less constant (vary from 0.2 to 0.3) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an incompressible fluid, the __________ is a function of both pressure as well as temperature. Entropy Enthalpy Internal energy All of these Entropy Enthalpy Internal energy All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The change in Gibbs freee energy for vaporisation of a pure substance is May be positive or negative Negative Zero Positive May be positive or negative Negative Zero Positive ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an isothermal reversible compression of an ideal gas Only ΔE = 0 ΔE = ΔH = 0 Only ΔH =0 DQ = dE Only ΔE = 0 ΔE = ΔH = 0 Only ΔH =0 DQ = dE ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law ) V₁-V₂ V₂/V₁ V₁.V₂ V₁/V₂ V₁-V₂ V₂/V₁ V₁.V₂ V₁/V₂ ANSWER DOWNLOAD EXAMIANS APP
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