Find the approx. number of molecules contained in a vessel of volume $7$ litres at $0^oC$ at $1.3 \times 10^5$ pascal
  • A$2.4 \times 10^{23}$
  • B$3 \times 10^{23}$
  • C$6 \times 10^{23}$
  • D$4.8 \times 10^{23}$
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