###### Thermodynamics – Solutions

**1) A geyser heats water flowing at the rate of 3.0 litres per minute from 27 ^{0}C to 77^{0} C. if the geyser operates on a gas burner, what is the rate of consumption of the fuel if its heat of combustion is 4.0 x 10^{4} J/g?**

Solution:

Given data is:

Flow rate of water is 3.0 litre/min.

The geyser heats the water, raising the temperature from 27^{0} C to 77^{0}C.

Initial temperature, t_{1} = 27^{0}C

Final temperature, t_{2} = 77^{0} C

Rise in temperature, Δt = t_{2} – t_{1}

= 77 – 27 = 50^{0}C

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ShikshaHouse

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Class 11th Physics - 12 Thermodynamics - NCERT Solutions

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