What is the heat needed to heat 150 g of water from 10.0 °C to 100 °C? (specific heat of water = 4,186 J/kg °C)

Question

Quizplus · Accepted Answer

The formula to calculate the amount of heat (q) needed to raise the temperature of a substance is q = m × c × ΔT, where m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature.

In this case, 
m = 150 g = 0.15 kg 
c = 4,186 J/kg°C 
ΔT = 100°C - 10.0°C = 90.0°C

Plugging in these values, we get q = (0.15 kg) × (4,186 J/kg°C) × (90.0°C) = 56,535 J

We convert the answer from Joules to kiloJoules (kJ) by dividing by 1000, so the final answer is 56.5 kJ.

What Is the Heat Needed to Heat 150 G of Water