Calculate how much gasoline needs to be burned to release 230 kJ of heat. Specific heat of combustion of gasoline 46MJ / kg
| January 16, 2021 | education
Given:
Q = 230 kJ = 230 * 10 ^ 3 Joules – the amount of heat obtained by burning gasoline;
q = 46 MJ / kg = 46 * 10 ^ 6 J / kg – specific heat of combustion of gasoline.
It is required to determine m (kilogram) – the mass of gasoline that must be burned to obtain heat Q.
We find the mass of gasoline from the following formula:
m = Q / q = 230 * 10 ^ 3 / (46 * 10 ^ 6) = 5 * 10 ^ -3 = 0.005 kilograms.
Answer: you need to burn gasoline weighing 0.005 kilograms.
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.
