39. A box contains a mixture of
H2 and He gases. Which of the following statements are corrects
(a) The average translational kinetic energies of H2 molecules and He atoms are same
(b) The average energies of H2 molecules and He atoms are same
(c) H2 molecules have greater average energy than that of He atoms
(d) The average speed of H2 molecules and He atoms are same
Answer-a,c
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a