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

💡 Solution & Explanation

The volume (and thus moles) of reactants in the second case is 4 times that of the first, meaning 4 times the heat is liberated (Statement II is true). However, this heat is distributed over 4 times the mass of the resulting solution. Since $\Delta T = Q / mc$, the temperature rise remains the same ($x^\circ\text{C}$). Thus, Statement I is incorrect.