# Chemistry

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calculate the amount of heat energy in joules to condense 125g of steam at 100 degrees celcius and cool to the liquid to 15 degrees celcius?

• Chemistry -

Note the correct spelling of celsius.
q1 = heat released to condense steam at 100 C to liquid at 100 C.
q1 = mass x heat vaporization

q2 = heat released on cooling from 100 C to 15 C.
q2 = mass water s specific heat water x (Tfinal-Tinitial).

Total Q = q1 + q2.

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