# If 1 gram of each of the following gases are taken at STP, which of the gases will occupy (a) greatest volume and (b) smallest volume?

According to Avogadro's law, we know that at STP, Volume of

1 mole gas = 22.4 L

1g CO = 22.4/28g L

1g  = 22.4/18g L

1g  = 22.4/16g L

1g NO = 22.4/30g L

Therefore,

(a) 1g  will occupy maximum volume &

(b) 1g NO will occupy the minimum volume

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