Chemical Thermodynamics Question 355

Question: For the reaction taking place at certain temperature $ NH_2COONH_4(s)\leftrightharpoons 2NH_3(g)+CO_2(g), $ if equilibrium pressure is 3X bar then $ \Delta _rG{}^\circ $ would be

Options:

A) $ -RT $ ln $ 9-3RT $ ln X

B) RT ln $ 4-3RT $ ln X

C) $ -3RT $ ln X

D) None of these

Show Answer

Answer:

Correct Answer: D

Solution:

  • $ \Delta {{G}^{{}^\circ }}=-RT $ ln $ K_{p};K_{p}={{( 2x )}^{2}}X=4x^{3} $

$ \Delta G{}^\circ =-RT $ In $ ( 4X^{3} ) $

$ \Delta G{}^\circ =-RT $ In $ 4-3RT $ In X



NCERT Chapter Video Solution

Dual Pane