Understanding Heat, Enthalpy, and Entropy when Boiling Water

If you boil water are you increasing delta H (heat), delta E (energy), or delta S (entropy)?

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...is the amount of heat that is needed to change water from a liquid to a gas. 1) When you boil water, do you need to add heat to the water?

Delta E is the change in the internal energy of a system. This is not the enthalpy. ...