# Chemistry

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How much heat (in Kj ) is required to warm 10.0g  of ice, initially at -11.0 C, to steam at 112.0 C?

• Chemistry -

q at a phase change = mass x heat vaporization for liquid to gas or
mass x heat fusion for solid to liquid.
For example, to change water from liquid at 100 C to steam at 100 C is mass H2O x heat vaporization.

q within a single phase is
mass x specific heat in that phase x (Tfinal-Tinitial).
For example, heat to raise T of water from liquid at zero C to liquid at 100 C is
mass H2O x specific heat H2O x (100)

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