Question

$1kWh$is how many joules?

Short answer

$1kWh=3.6\times {10}^{6}J$

Step-by-step solution

Given information

We need to find that how many joules.

Simplify

The $\left(kWh\right)$is a unit of energy, so we have to convert it into Joule. The power is the rate where the energy is consumed or transferred, so it is energy per time. The unit of power is Joule per second or Watt $\left(W\right)$where $1W=1J/s$.

$1kW=1000W=1000(1J/s)=1000J/s$

$1$hour represents $60$minutes and each minute represents $60$seconds. So, one hour has

$1h=(60min)60\frac{s}{min}=3600s$

Now, converting$1kWh$to Joule by

$1kWh=1000\frac{J}{s}\left(3600s\right)=3.6\times {10}^{6}J$