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Water has a high specific capacity. Why can water release a large amount of energy without a great change in temperature?

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  • $\begingroup$ More generally, you should be asking what factors affect heat capacity? The answer is density plus number of degrees of freedom (read more). Water molecules can translate, their bond lengths can oscillate, their bond angle can oscillate, they can rotate. So there are lots of places to 'store' energy. $\endgroup$ – lemon Apr 3 '16 at 7:27

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