OnlineCBT
Chemistry · THERMODYNAMICS
हिन्दीA reaction has \( \Delta H = +60\text{ kJ mol}^{-1} \) and \( \Delta S = +150\text{ J K}^{-1}\text{mol}^{-1} \). What is the minimum temperature above which the reaction becomes spontaneous?
Correct answer · Option 2
\( 400\text{ K} \)
Explanation
For spontaneity, \( \Delta G = \Delta H - T\Delta S < 0 \implies T > \frac{\Delta H}{\Delta S} = \frac{60000\text{ J mol}^{-1}}{150\text{ J K}^{-1}\text{mol}^{-1}} = 400\text{ K} \).
