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A geyser heats water flowing at …

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A geyser heats water flowing at a rate of 3.0 litres per minute from 27°c to 77°c. If the geyser operateson a gas burner. What is the rate of consumption of the fuel ifits heat of combustion is 4.0×10^4 j/g!?

Posted by Yashas Bm 6 years, 10 months ago

CBSE > Class 11 > Physics

1 answers

?????Geetanjali???? ? 6 years, 10 months ago

Volume of water heated = 3.0 litre min^-1 Mass of water heated = 3000 g min^-1 Rise in temperature, deltaT = 77-27= 50'C Specific heat of water, c= 4.2 Jg^-1 Heat absorbed by water, Q= mc deltaT = 3000×4.2×50 = 63×10^4 J min^-1 Heat of combustion = 4.0×10^4 Jg^-1 Rate of combustion of fuel = 63×10^4 J min^-1/4.0×10^4 J g^-1 = 15.75 g min^-1 .

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