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10 cards from this deck
Energy absorbed during phase change at constant temperature
Hidden (energy hidden as no temperature change occurs)
Energy to change 111 mole solid to liquid at melting point
Energy to change 111 mole liquid to gas at boiling point
6.0 kJ mol−16.0 \text{ kJ mol}^{-1}6.0 kJ mol−1
40.7 kJ mol−140.7 \text{ kJ mol}^{-1}40.7 kJ mol−1
All hydrogen bonds must be completely broken in vaporisation
q=n×Lq = n \times Lq=n×L
Strong hydrogen bonds between water molecules
Remains constant at melting point or boiling point
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