Question

Statement-I: There is no change in enthalpy of an ideal gas during compression constant temperature. 

Statement-II: Enthalpy of an ideal gas is a function of temperature and pressure.

(A) Statement-I is true, statement-II is true and statement-II is correct explanation for statement-I 

(B) Statement-I is true, statement-II is true and statement-II is NOT the correct explanation for statement-I 

(C) Statement-I is false, statement-II is true. 

(D) Statement-I is true, statement-II is false

Answer 1

Correct option (D) Statement-I is true, statement-II is false

Explanation:

HCl + NaOH = –13.7

∴ ∆H_rest 0 × Alkali = –25%

∆H_diss = +2 × 13.7 – 25% = 2 

∴ H₂C₂O₄ → 2H + C₂ O₄ ∆H= 2 k cal