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A sealed container with negligible coefficient of volumetric expansion contains helium When it is heated from 300K to 600K the average KE of helium atom is
Dear pallvi
Average K.E of a molecule is given as
K.E =3/2 kT
chenge in K.E = 3/2 kT2 - 3/2kT1
=3/2k (T2 - T1)
=3/2 * 1.38 * 10-23 ( 600 -300)
=6.21 * 10-21 J
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