# How much heat energy is required to raise the temperature of 5 kilograms of coal from 20°c to 220°c?

To answer this, we’ll need to use the specific heat capacity of coal. The specific heat capacity of a substance is the amount of heat required to raise the temperature of one kilogram of the substance by one degree Celsius. For coal, the specific heat capacity is 0.786 calories per gram per degree Celsius.

To calculate the amount of heat required to raise the temperature of 5 kilograms of coal from 20°C to 220°C, we’ll need to multiply the specific heat capacity of coal by the mass of coal, the temperature difference, and a conversion factor to get the answer in calories. The equation will look like this:

(0.786 calories/gram°C)(5 kilograms)(220°C – 20°C) = ? calories

Plugging in the values, we get:

(0.786 calories/gram°C)(5 kilograms)(220°C – 20°C) = 71,760 calories

So, it would take 71,760 calories of heat to raise the temperature of 5 kilograms of coal from 20°C to 220°C.

## Other related questions:

### Q: How much heat energy is necessary to raise the temperature of 5 kg of water from 20⁰c to 100⁰c?

A: The specific heat capacity of water is 4.184 J/g°C, so the heat required would be 4.184 x 5 x (100-20) = 4,184,000 J, or 4.184 MJ.

A: -15 C

### Q: How much heat is required to raise the temperature?

A: The answer to this question depends on a number of factors, including the specific heat capacity of the material being heated, the starting temperature, and the desired final temperature.