Question

10 gram of water is converted into steam at atmospheric pressure and 100°c.calculate the increase in internal energy.specific latent heat of vaporization of water=540cal/gm and volume of 1 gram of water and steam are 1 cm3 and 1671 cm3

Answer 1

Answer:

Work done =PΔV

=1×10

5

×1671×10

−6

J

=167.1J=39.97 cal

ΔU=Q−W

ΔU=540−40 cal

ΔU=500 cal

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