With the complete combustion of kerosene, 92 mJ of energy was released. How much kerosene was burned?

univerkov | May 21, 2021 | education

To find the desired mass of burned kerosene, we apply the formula: Q = qк * m and m = Q / qк.

Variables and constants: Q – released heat (Q = 92 MJ = 92 * 10 ^ 6 J); qк – specific heat of combustion of kerosene (qк = 4.6 * 10 ^ 7 J / kg).

Let’s calculate: m = Q / qk = 92 * 10 ^ 6 / (4.6 * 10 ^ 7) = 2 kg.

Answer: 2 kg of kerosene burned out.

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.