A Joule is a Watt-second (or W=J/s). Therefore, 3.5 kWh = 3.5*3600 kWs = 3.5*3600*1000 W-s = 12.6 million Joules
Chat with our AI personalities
The answer is 0.001 kilojoules in a joule 1J = 0.001kJ
I may be wrong, but kilo I think stands for 1000. Since a kilojoule is larger than a joule, I believe that you have to move the decimal point to the left. For example you would have less than 1 whole kilojoule in a joule, so it would be some thing like .00001 or something to that effect.
There are 3.6 million joules in one kilowatt-hour.
1 kWh is a kilowatt-hour, in other words 1000 watts for one hour. That is 1000 Joules per second, for 3600 seconds. So 1 kWh is 3,600,000 Joules, or 3600 kJ.
1 kWh = 3.6 x 106 joules. In engineering notation, that's 3.6E6.