Question

Three gases O₂, N₂ and Co₂ having masses 16g, 28g and 44g respectively are filled in a container of volume V. Evaluate total pressure if temperature of the gases is T. 

1. \({3\over2}{ RT\over V}\)
2. \({ RT\over V}\)
3. \({2\over5}{ RT\over V}\)
4. \({5\over2}{ RT\over V}\)

Answer 1

The correct option is 4) \({5\over 2}{ RT\over V}\) 

\(PV=({16\over32}+{ 28\over28}+{ 44\over44})RT\) 

\(p={5\over 2}{ RT\over V}\)