A chamber contains `77g of CO_2`. The chamber was divided into three compartments X, Y and Z as shown below. Suggest the relation between the internal energies of the gas in the three compartments X, Y and Z.
`X  11 g CO_2 "    " y 22g CO_2 "    " Z 44g CO_2`

Explanation

Under similar conditions the internal energy of a given substance depends on its quantity because it is an extensive property. The internal energies of `CO_2` in the compartments X, Y and Z are in the ratio 1:2:4.