When a sample of gas is compressed at constant temperature from $15 \, atm$ to $60 \, atm$,its volume changes from $76 \, cm^3$ to $20.5 \, cm^3$. Which of the following statements are possible explanations of this behaviour?
$(1)$ The gas behaves non-ideally
$(2)$ The gas dimerises
$(3)$ The gas is adsorbed into the vessel walls

  • A
    $1, 2, \text{ and } 3$
  • B
    $1 \text{ and } 2 \text{ only}$
  • C
    $2 \text{ and } 3 \text{ only}$
  • D
    $1 \text{ only}$

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