Question

what is the temperature change if 83680 joules of heat are ADDED to 1KG of water?

Answer 1

The mechanical eqivalent of heat is 4.185 joules per calorie.
One calorie is the quantity of heat needed to raise the temperature of 1 gram of water from 14.5 to 15.5 degrees celsius.
83680 joules are equivalent to 83680/4.185 calories.
Temperature change is given by:
\[\frac{83680}{4.185\times 1000}=?\]