What amount of heat is needed to heat 100 g water from 10 to 100 C?

The amount of heat required to heat water can be calculated using the formula:
Q = C1 * m * (tc – tn), where C is the specific heat capacity of water (C1 = 4200 J / (kg * K)), m is the mass of water for heating (m = 100 g = 0.1 kg), tc – final water temperature (tк = 100 ºС), tн – initial water temperature (tн = 10 ºС).
Let’s calculate the required amount of heat:
Q = C * m * (tc – tn) = 4200 * 0.1 * (100 – 10) = 37800 J = 37.8 kJ.
Answer: To heat 100 g of water, 37.8 kJ of heat is needed.