Question

The complete combustion of 1.00 kg of coal releases about 3.0 x 10E7 J of energy. The conversion of 1.00 kg of mass into energy is equivalent to the burning of how many metric tonnes of coal?

Answer 1

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Step-by-step explanation:

Answer 2

Answer: 0.001 metric tonnes

Step-by-step explanation:

According to Einstein equation, Energy and mass are inter convertible.

`E=mc^2`

E= Energy

m = mass

c= speed of light

Given : Complete combustion of 1.00 kg of coal releases about
`3.0* 10^7 J` of energy.

Given mass: 1 kg

Converting kg to metric ton using the conversion factor:

1 kg=0.001 metric tonnes

Thus 1 kg of coal would also be equal to 0.001 metric tonnes.