show that 1kw=3.6 MJ.
Answers
Answered by
88
One Watt (W) is 1 Joule per second, 1W=1J/s. So a kW=1000W=1000J/s. There are 60*60 seconds in an hour, so a Kilowatt hour is
3600*1000 J=3.6*10^6 J.
One mega-joule is 1 million Joules, 1MJ=10^6 J, so
1 kWh=3.6 MJ.
3600*1000 J=3.6*10^6 J.
One mega-joule is 1 million Joules, 1MJ=10^6 J, so
1 kWh=3.6 MJ.
Answered by
14
To show that
1Kwh=3.6 MJ
Solution:
We know that
Substitute the values
Then, we get
J
We know that
1MJ=
Hence, proved.
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