Question

Express 1 kWh in joule

Answer 1

3600000 joules

$$$hope it will help you

Answer 2

Answer:

PLS MARK IT AS BRAINLIEST!!!!

1 kWh= 3.6 million joules

Explanation:

1 watt is defined as 1 joule/second. So if you multiply a watt times seconds, you get Ws which is also a joule.

So 1kW is 1000W, and an hour is 60 seconds x 60 minutes.

So 1kWh = 3600kWs = 3,600,000Ws = 3,600,000J

So kWh x 3600sec/hr x 1000W/kW = J

You can see why we use kWh instead of J, the numbers would be too unwieldy with joules! Also, it is more natural to understand. 1kWh means I'm using a 1kW load for one hour.