Thermodynamics for Chemical Mcqs


Q.  Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, A. is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation ?

a. [∂(G/T)/∂T] = – (H/T2)
b. [∂(A/T)/∂T]V = – E/T2
c. Both A. and B.
d. Neither A. nor B.


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The standard Gibbs free energy change of a reaction depends on the equilibrium______________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  The most important application of distribution law is in_____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Enthalpy changes over a constant pressure path are always zero for ______________ gas?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Fugacity is most helpful in____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  During adiabatic expansion of gas___________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  What is the degree of freedom for a system comprising liquid water equilibrium with its vapour ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  In an ideal solution, the activity of a component equals its __________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following non-flow reversible compression processes require maximum work ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Cp – Cv = R is valid for ______________ gases?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Activity co-efficient is a measure of the____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Fugacity and pressure are numerically equal, when the gas is____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Third law of thermodynamics is concerned with the__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Clapeyron Equation deals with the____________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  For an ideal gas, the enthalpy__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Fugacity and pressure are numerically not equal for the gases__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm
MCQs:  Work done in an adiabatic process between two states depends on the__________________?
Category: Chemical Engineering Mcqs,   Published by: teswesm