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Chemistry 7 Online
OpenStudy (anonymous):

How many g of CH4 would need to be combusted to boil 2 cups of water?

OpenStudy (gebooors):

Lets assume amount of water is 400 g ( 4 dl) = m Temperature rises from 20C to 100C = Dt = 80 K C is a specific heat capacity of water E = m c Dt Then find out, how much 1 kg methane contain energy.

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