Thermodynamics

A corked flask containing boiling water and its vapour is allowed

A corked flask containing boiling water and its vapour is allowed to cool down to room temperature. If water and…

The equation ΔG = ΔH – TΔS is for

The equation ΔG = ΔH - TΔS is for Options (a) open system (b) closed system (c) isolated system (d)…

Consider the modes of transformations of a gas from state ‘A’ to state ‘B’

Consider the modes of transformations of a gas from state 'A' to state 'B' as Which one of the following…

Which of the following depends on the path followed

Which of the following depends on the path followed Options (a) internal energy change (b) enthalpy change (c) work done…

The work done in expansion of an ideal gas from an initial volume v1 to a final v2

The work done in expansion of an ideal gas from an initial volume v1 to a final v2 litres against…

For spontaneous reaction

For spontaneous reaction Options (a) ΔE or ΔU must decrease (b) ΔH must decrease (c) ΔS must decrease (d) ΔG…

For isothermal change in the case of an ideal gas

For isothermal change in the case of an ideal gas Options (a) ΔG = ΔH - TΔS (b) ΔG =…

Standard enthalpy of vaporisation Δvap H⁰ for water at 100⁰C is 40.66 kJ mol⁻¹.

Standard enthalpy of vaporisation Δvap H⁰ for water at 100⁰C is 40.66 kJ mol⁻¹. The internal energy of vaporisation of…

The enthalpy of fusion of water is 1.435 kcal/mol.The molar entropy

The enthalpy of fusion of water is 1.435 kcal/mol.The molar entropy change for the melting of ice at 0⁰C is…

In which of the following reaction standard entropy change (ΔS⁰)

In which of the following reaction standard entropy change (ΔS⁰) is positive and standard Gibb's energy change (ΔG⁰) decreases sharply…