Question

The amount of energy, E, required to raise the temperature, T, of a container of water is E=240T, where E is measured in calories and T is the change in Temperature in degrees Celsius. A fuel source will provide between 12,000 and 18,000 calories of heat. What is the expected change in temperature of the container of water if the entire fuel source is used to heat the water?

Answer 1

E=240T

For the lower limit of energy:
E=12,000 cal

so 12000 = 240 T            >>>      T = 50 degrees Celsius

For the upper limit of energy:
E=18,000 cal

so 18000 = 240 T            >>>      T = 75 degrees Celsius

The difference in temperature = 75 - 50 = 25 degrees Celsius

I hope I helped you.