Chemical Engineering Thermodynamics The change in Gibbs freee energy for vaporisation of a pure substance is Negative Positive May be positive or negative Zero Negative Positive May be positive or negative Zero 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 Either A or B Hot reservoir approaches infinity Cold reservoir approaches zero Neither A nor B Either A or B Hot reservoir approaches infinity Cold reservoir approaches zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Gibbs free energy of a pure fluid approaches __________ as the pressure tends to zero at constant temperature. Zero None of these Minus infinity Infinity Zero None of these Minus infinity Infinity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P₁ and P₂.(where, P₁ and P₂ are initial and final pressures respectively) Harmonic Arithmetic Logarithmic Geometric Harmonic Arithmetic Logarithmic Geometric ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Melting of ice is an example of an __________ process. Isothermal Adiabatic Isometric None of these Isothermal Adiabatic Isometric None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy, which is a measure of the disorder of a system is Independent of temperature Zero at absolute zero temperature for a perfect crystalline substance All of these Independent of pressure Independent of temperature Zero at absolute zero temperature for a perfect crystalline substance All of these Independent of pressure ANSWER DOWNLOAD EXAMIANS APP