How much natural gas will it take to burn to obtain energy equal to 1.8 MJ?

univerkov | July 28, 2021 | education

Q = 1.8 MJ = 1.8 10 ^ 6 J.
λ = 4.4 * 10 ^ 7 J / kg.

m -?

The amount of heat released during fuel combustion is determined by the formula: Q = λ * m, where λ is the specific heat of combustion of the fuel, m is the mass of the fuel.

m = Q / λ.

m = 1.8 * 10 ^ 6 J / 4.4 * 10 ^ 7 J = 0.4 kg.

Answer: m = 0.4 kg.

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.