Posted by Kristin on .
An intrepid explorer takes 400 g of ice from the cold Siberian environment, where the temperature is –40 degrees and places it in a kettle inside his mobile laboratory. The ice melts and he heats the water to +40 degrees. What is the total amount of heat absorbed by the explorer’s sample of H2O?

Thermodynamics 
DrBob222,
q1 = heat absorbed to raise T from 40 to zero.
q1 = mass ice x specific heat ice x (TfinalTinitial)
q2 = heat absorbed to melt ice at zero to form liquid water at zero..
q2 = mass ice x heat fusion.
q3 = heat absorbed to raise T liquid water from zero to +40C.
q3 = mass water x specific heat water x (TfinalTinitial).
Total q = q1 + q2 + q3.