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# Conversion: SI Prefixes

CHEM-PGBPFP

In 2014, the average annual electricity consumption for a U. S. residential utility customer was $1.1 \times 10^{7} \text{ W} \cdot \text{h}$ (watt-hours).

What is this value in the more convenient unit of megawatt-hour ($\text{MW} \cdot \text{h}$)?

A

$1.1 \times 10^{-6} \text{ MW} \cdot \text{h}$

B

$11 \text{ MW} \cdot \text{h}$

C

$1.1 \times 10^{6} \text{ MW} \cdot \text{h}$

D

$1.1 \times 10^{13} \text{ MW} \cdot \text{h}$