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3. Determine the amount of energy required to heat 3.50 moles of water vapor from 107°C to 13
4. How much energy is needed to heat a 27.50 grams of H₂O (s) at -20°C to H₂O (l) at 0°C?

3 Determine the amount of energy required to heat 350 moles of water vapor from 107C to 13 4 How much energy is needed to heat a 2750 grams of HO s at 20C to HO class=