How much heat is needed to turn 0.5 kg of water into steam at 100 degrees?

To calculate the amount of heat required to convert the taken water into steam, we will use the formula (we take into account that additional heating is not required): Q = m * Lw.
Const: Lв – beats. heat of vaporization (Lw = 2.26 * 10 ^ 6 J / kg).
Data: m is the mass of water taken (m = 0.5 kg).
Let’s make a calculation: Q = m * Lw = 0.5 * 2.26 * 10 ^ 6 = 1.13 * 10 ^ 6 J.
Answer: For the vaporization of the taken water, 1.13 MJ of heat is required.