832. The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume : Cp of copper is 23 J K⁻¹mole⁻¹) September 6, 2025 by Admin A. 2300 J B. 4600 J C. 230 J D. 2.3 x 106 J ✅ The correct answer is option A.