JEE Advanced2021ChemistryThermodynamics (C)Actual
For the reaction, X (s) Y (s)+ Z (g) , the plot of p_ Z p^ versus 10⁴ T is given below (in solid line), where p_ Z is the pressure (in bar) of the gas Z at temperature T and p^ =1 bar. (Given, d ( K) d ( 1 T ) =- H^ R , where the equilibrium constant, K= p_ z p^ and the gas constant, R =8.314 ~J ~K ⁻¹ ~mol ⁻¹ ) The value of standard enthalpy, ∆ H o (in kJ mol - 1 ) for the given reaction is ___.
Correct answer
0
Step-by-step solution
Slop g the Given graph d   ln p z p ϕ d   10 4 T = − 7 + 3 12 − 10 = − 2 d   ln p z p ϕ d 1 T − 2 × 10 4 = − ΔH o R ΔH o = 2 × 10 4 × R = 2 × 8 .314 × 10   kJ / mol = 166 . 28