Asked by chris
How much energy is absorbed to change 7.25 g of ice at -3 C to 25.5C?
Answers
Answered by
DrBob222
q1 = heat to move T of solid ice from -3 to zero.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial). Tf is 0; Ti is -3
q2 = heat needed to convert ice at zero C to liquid at zero C.
q2 = mass ice x heat fusion ice.
q3 = heat needed to change T liquid H2O from zero C. to 25.5 C.
q3 = mass H2O x specific heat H2O x (Tfinal-Tinitial). Tf is 25.5; Ti is 0
Total heat needed is q1 + q2 + q3.
q1 = mass ice x specific heat ice x (Tfinal-Tinitial). Tf is 0; Ti is -3
q2 = heat needed to convert ice at zero C to liquid at zero C.
q2 = mass ice x heat fusion ice.
q3 = heat needed to change T liquid H2O from zero C. to 25.5 C.
q3 = mass H2O x specific heat H2O x (Tfinal-Tinitial). Tf is 25.5; Ti is 0
Total heat needed is q1 + q2 + q3.
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