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Original Question
How much heat energy, in kilojoules, is required to convert 53.0 g of ice at -18.C to water at 25.0 C ?Asked by liz
How much heat energy, in kilojoules, is required to convert 37.0g of ice at −18.0 ∘C to water at 25.0 ∘C ?
Answers
Answered by
DrBob222
q1 = heat needed to raise T of ice from -18 C to zero C.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial)
q2 = heat needed to melt ice at zero C to liquid H2O at zero C.
q2 = mass ice x heat fusion
q3 = heat needed to raise T liquid H2O from zero C to 25 C.
q3 = mass water x specific heat water x (Tfinal-Tinitial)
Total heat is sum of q1, q2, q3.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial)
q2 = heat needed to melt ice at zero C to liquid H2O at zero C.
q2 = mass ice x heat fusion
q3 = heat needed to raise T liquid H2O from zero C to 25 C.
q3 = mass water x specific heat water x (Tfinal-Tinitial)
Total heat is sum of q1, q2, q3.
Answered by
lopez
0.001
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