Question by Jacky: How a lot of joules of warmth vitality are required to completely adjust 21. g of drinking water to steam at the boiling tempera
How numerous joules of heat vitality are essential to totally modify 21. g of h2o to steam at the boiling temperature?

Best solution:

Remedy by Chem Gentleman
Warmth of vaporization of water is 2270 J/g.

21. g x (2270 J / one g) = 47,700 J = 47.7 kJ

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