Helmholtz free energy (A) is defined as
A = H - TS
A = E - TS
A = H + TS
None of these
- Pick out the correct statement.
- For a multi-component system, the term chemical potential is equivalent to the
- Which of the following is not an intensive property?
- If different processes are used to bring about the same chemical reaction, the enthalpy change is same…
- The unity of Planck's constant 'h' in the equation, E = hv is
- Charles' law for gases states that
- Van Laar equation deals with the activity coefficients in
- The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator…
- Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas…
- What happens in a reversible adiabatic compression?
- The expression, nRT ln(P1/P2), is for the __________of an ideal gas.
- In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents…
- Gibbs-Helmholtz equation is
- At equilibrium condition, the chemical potential of a material in different phases in contact with each…
- At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.
- Pick out the wrong statement.
- The number of degree of freedom for an Azeotropic mixture of ethanol and water in vapourliquid equilibrium,…
- The adiabatic throttling process of a perfect gas is one of constant enthalpy
- For a cyclic process, a fixed ratio between heat and work
- Entropy change in case of reversible adiabatic process is
- The acentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr-1 = 0.7, where,…
- The relation connecting the fugacities of various components in a solution with one another and to composition…
- Which of the following is an undesirable characteristic of a refrigerant?
- Which of the following is not a reversible process?
- Joule-Thomson co-efficient is defined as
- Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole.…
- The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
- Critical solution temperature (or the consolute temperature) for partially miscible liquids (e.g., phenol-water)…
- The ammonia synthesis reaction represented by N2 + 3H2 2NH3; ΔH = - 22.4 kcal, is
- The absolute entropy for all crystalline substances at absolute zero temperature is