How much energy does it take to melt 4 kg ice at 0 °.

univerkov | January 14, 2021 | education

The amount of energy that will be used to melt 4 kg of ice is calculated by the formula (since ice is taken at a melting temperature of 0 ºС, additional heating is not required):
Q = λ * m, where λ is the specific heat of melting of ice (λ = 3.4 * 10 ^ 5 J / (kg * K)), m is the mass of ice (m = 4 kg).
Let’s calculate the required amount of energy:
Q = λ * m = 3.4 * 10 ^ 5 * 4 = 13.6 * 10 ^ 5 J = 1.36 MJ.
Answer: You need to spend 1.36 MJ of energy.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.