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Q.

The average kinetic energies of helium (mol.wt.4), methane (mol.wt.16) and sulphur-dioxide (mol.wt.64), at certain temperature are respectively x, y and z kJmol-1. The ratio of x, y and z is

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a

1 : 4 : 16

b

1 : 2 : 4

c

1 : 1 : 1

d

4 : 2 : 1

answer is C.

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Detailed Solution

Average K.E=32RT ;Average kinetic energy is kinetic energy per mole or molecule.It depends only on Absolute temperture.At same tempereature all gases will have same Average kinetic energy.
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