The total momentum of the molecules of $1 \,gm$ $mol$ of a gas in a container at rest of $300 \,K$ is
  • A$2 \times \sqrt {3R \times 300} \,gm \times cm/\sec $
  • B$2 \times 3 \times R \times 300\,gm \times cm/\sec $
  • C$1 \times \sqrt {3 \times R \times 300} \,gm \times cm/\sec $
  • D$0$
Medium
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