Chemical Thermodynamics Chapter 4 Chemistry Class 12 Textbook Solution

4. Answer the following questions.

xi. Determine whether the following reaction is spontaneous under standard state conditions. 2 H2O(l) + O2(g)→ 2H2O2(l) if ΔH0 = 196 kJ, ΔS0 = -126 J/K Does it have a cross-over temperature? (Nonspontaneous, No)

Answer:- 

When ∆H positive and ∆S is negative, then ∆G is positive regardless of temperature. Hence, the reaction is nonspontaneous at all temperatures. It does NOT have a cross-over temperature.

Chemical Thermodynamics Chapter 4 Chemistry Class 12 Textbook Solution