Question

8. Calculate the amount of time required to raise the temperature of 0.50 liter of water from 0.0 Celsius to 10.00 Celsius if heat energy is supplied at a rate of 1100 joules per second

Answer 1

It takes about 4.186 joules to heat one gram of water by 1 deg Celsius. M
0.50 liters is 500 grams, and you want to hear that by 10C. So, multiply 4.186 by 500*10 the answer is about 4.186*500*10=20930 joules.
If you give 1100 joules per second, it will take 20930/1100=19.027 seconds to supply enough energy.