Question

Per person, the energy consumption in the United States is about 3.3 × 10^8 Btu/yr. This is equivalent to a power of:________. A. 11.0 W

B. 11.0 W
C. 11.0 MW
D. 11.0 kW
E. 110 KW
F. 1.10kW
G. 11.0 QW
H. 0.11kW

Answer 1

`3.3* 10^8\ btu/yr=11\ kW`

Step-by-step explanation:

Btu of British thermal unit is a unit of heat. The relation between btu/year and watts is given by :

`1\ btu/yr=3.343* 10^(-5)\ W\\\\3.3* 10^8\ btu/yr=3.343* 10^(-5)* 3.3* 10^8\ W\\\\3.3* 10^8\ btu/yr=11031.9\ W\\\\3.3* 10^8\ btu/yr=11\ kW`

So,
`3.3* 10^8\ btu/yr` is equal to 11 kW. Hence, the correct option is (d).