Question

The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.21 pounds of butane (fuel value is 10.85 kcal/g) is used to heat 123.0 kg of water at an initial temperature of 18.0 °C, what is the final temperature?

Answer 1

ok this one looks to me that you will first have to calculate the energy released by buring that fuel. we notice the specific heat is in kcal/g and our mass is in pounds. so we will need to make that conversion inorder to get the units right.