Hello,

Can some one tell me if I came to the correct answer...
Thank You

How much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celcius?

my answer:
1,314,718 J

Could you give us a hint on what you used for the specific heat of coal?

You are in the right ballpark, but you have to specify what you used as specific heat, or type of coal.

To find the amount of heat energy required to raise the temperature of a substance, you can use the formula:

Q = m * c * ΔT,

where:
Q is the heat energy (in joules),
m is the mass of the substance (in kilograms),
c is the specific heat capacity of the substance (in joules per kilogram per degree Celsius),
ΔT is the change in temperature (in degrees Celsius).

In this case, the mass of coal is given as 5 kilograms, the initial temperature is 20 degrees Celsius, and the final temperature is 220 degrees Celsius. However, to calculate the specific heat capacity of coal, it is necessary to know its specific heat capacity value.

Different materials have different specific heat capacities, so specific heat capacity values can vary. Without knowing the specific heat capacity of coal, it is not possible to provide an accurate answer.

To get the specific heat capacity of coal, you would need to look it up in a reliable source, such as a physics or chemistry textbook, or consult relevant scientific literature.