Read the Assertion and Reason below and choose the correct option. — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

If a reaction is spontaneous ($\Delta G < 0$) and randomness decreases ($\Delta S < 0$), the only way $\Delta G = \Delta H - T\Delta S$ can be negative is if $\Delta H$ is sufficiently negative (exothermic). Thus Statement I is true. Statement II is false, as many exothermic reactions (like combustion yielding gases) display an increase in randomness.