Answer
$2.78\times 10^{-4}~kWh$
Work Step by Step
We can convert 1.00 kJ to units of kWh:
$(1.00\times 10^3~J)~\times \frac{1~kW}{10^3~J/s}\times \frac{1~h}{3600~s} = 2.78\times 10^{-4}~kWh$
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