Question #11028
If the fuel consumption of a car, travelling at a steady 60 mph, is 20 mpg what is the power produced by the petrol being burnt in the engine? [Assume that the density of petrol is 0.84 kg/l and the heat of combustion of petrol is 47 302 kJ/kg]
1
Expert's answer
2012-06-21T07:26:36-0400
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Comments

Assignment Expert
17.06.13, 15:19

Dear Edith Barrowman! W (for Watt) is defined as J/s (Joule per second). You can find additional info here lt;a href="https://en.wikipedia.org/wiki/Watt">https://en.wikipedia.org/wiki/Watt

Edith Barrowman
16.06.13, 12:32

Hi, I am currently doing the CFPA diploma in fire management and I have submitted my answer to the above question exactly as you have above and the marker has come back with a response that I have my units tangled up and need to end up with joules per second. I am very confused. Can you please give my some guidance. Thanks Edith

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