PIMSO 2025 - Science - Secondary 4 - National Round Question 12

Question 12

1. 1 mol of ice held at −10 °C
2. 1 mol of H₂O held at 0 °C, constantly interconverting between ice and water
3. 1 mol of water held at 40 °C
4. 1 mol of water vapor held at 140 °C