Posted by **bob** on Sunday, April 13, 2008 at 5:56pm.

How much heat(energy) in calories will it take to warm 25 g of ice at -10 degrees C to liquid water at 40 degrees C?

- chem -
**DrBob222**, Sunday, April 13, 2008 at 8:25pm
q1 = heat to warm ice from -10 to zero degrees C (without melting it).

q1 = mass ice x specific heat ice x delta T (delta T is 10).

q2 = heat to melt ice at zero degrees C.

q2 = mass ice x heat fusion.

q3 = heat to raise temperature of water zero C to +40.

q3 = mass water x specific heat water x delta T.

Total heat energy is q1 + q2 + q3.

You will need to look up specific heat ice, specific heat water and heat fusion of water.Post your work if you get stuck.

q2 =

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