Sunflower oil weighing 400 g was poured into a glass jar and placed in the refrigerator. at the same time

Sunflower oil weighing 400 g was poured into a glass jar and placed in the refrigerator. at the same time, the oil temperature dropped by 20 degrees. How much heat is given off when the oil is cooled?

Given:

m = 400 grams = 0.4 kilograms – the mass of sunflower oil, which was placed in the refrigerator;

dT = 20 degrees Celsius – change in sunflower oil temperature;

c = 1800 J / (kg * C) – specific heat of sunflower oil.

It is required to determine Q (Joule) – the amount of heat that was released when cooling vegetable oil.

To find the amount of heat, you need to use the following formula:

Q = c * m * dT = 1800 * 0.4 * 20 = 1800 * 8 = 14400 Joules.

Answer: when the sunflower oil is cooled in the refrigerator, heat is released, equal to 14,400 Joules.