Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2004
Exam
AIIMS
Year
2004
Subject
Chemistry
Chapter
Thermodynamics (C)

AIIMS 2004 · Chemistry · Thermodynamics (C)

For the equilibrium H_2 O_ (l) leftharpoons H_2 O_ (g) at 1 atm and...

For the equilibrium H2O(l)⇌H2O(g)\mathrm{H}_2 \mathrm{O}_{(l)} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} at 1 atm and 298 K298 \mathrm{~K},

Options

  1. Astandard free energy change is equal to zero (ΔG∘=0)\left(\Delta G^{\circ}=0\right)
  2. Bfree energy change is less than zero (ΔG<0)(\Delta G < 0)
  3. Cstandard free energy change is less than zero (ΔG∘<0)\left(\Delta G^{\circ} < 0\right)
  4. Dstandard free energy change is greater than zero (ΔG∘>0)\left(\Delta G^{\circ}>0\right).

Correct answer

A. standard free energy change is equal to zero (ΔG∘=0)\left(\Delta G^{\circ}=0\right)

Step-by-step solution

H2O(l)⇌H2O(g)\mathrm{H}_2 \mathrm{O}_{(l)} \rightleftharpoons \mathrm{H}_2 \mathrm{O}_{(g)} This is a spontaneous process at standard conditions thus, the standard free energy change must be less then zero, i.e. ΔG∘<0\Delta G^{\circ} < 0.
Practice Thermodynamics (C) on Quantrex Academy →

More from Thermodynamics (C)

A certain organic solvent has Δ H\_vap = 28.50\ kJ mol^ -1 and Δ S\_vap = 88.2\ J K^ -1 \… MHT CET Medical 2026Which of the following statements regarding spontaneous process is NOT true? MHT CET Medical 2026Calculate Δ H for a reaction, 2X_ (g) + Y_ (g) arrow 2Z_ (g) at 298 K if Δ U = -10.5 kJ… MHT CET Medical 2026500\ mL of nitrogen gas and 750\ mL hydrogen gas were allowed to react at 1\ bar pressure… MHT CET Medical 2026The relationship between Δ H and Δ U for the reaction, PCl_3(g) + Cl_2(g) arrow PCl_5(g)… MHT CET Medical 2026What would be the heat released in kJ when 450\ cm^3 of 0.02\ M\ H_2SO_4 is mixed with… MHT CET Medical 2026Identify from following reactions that it takes place with Δ H = Δ U . MHT CET Medical 2026Calculate the work done in the following reaction at 300\ K , A(g) + B(g) = 2C(g) [R =… MHT CET Medical 2026 Full Thermodynamics (C) list All AIIMS PYQs