Thursday
October 23, 2014

Homework Help: chemistry

Posted by Yasha on Sunday, March 25, 2012 at 9:30pm.

If all the energy obtained from burning 1.23 pounds of propane (fuel value is 11.09 kcal/g) is used to heat 125.0 kg of water at an initial temperature of 21.8 C, what is the final temperature?

Hint:
The heat, q, released by burning propane is absorbed by the water. Use the following formula to find the temperature change, T,
q = m*c*(Change in temperature)
Where m is mass and c is specific heat

I've done it several different ways and I keep getting 21.8 for an answer and it says that is wrong.

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