Question

If the heat content of one ton of coal is 28 million Btu/ton, what is the cost of electricity? a)- $0.063 b)- $0.014 °c)- $0.023 d)- $0.011

Answer 1

The electricity cost will be Option d ($0.011).

Step-by-step explanation:

The given values are:

1 ton coal = 28 million Btu/ton

Or,

1 metric tonne = 28 × 10⁶ Btu

As we know,

Coal's cost,

⇒
`C=30/metric \ tonne`

`=(30)/(28* 10^6)`

⇒
`H=10300 \ btu/Kwh`

Now,

Electricity's cost,

⇒
`C* H`

On substituting the estimated values, we get

⇒
`(30)/(28* 10^6)* 10300`

⇒
`0.011/ Kwh`