A mixture contains 64 g of dioxygen and 60 g of neon at a total pressure of 10 Bar. The partial pressure in bar of dioxygen and neon are respectively (atomic masses `O = 16, Ne = 20`)

Options

A. 4 and 6
B. 6 and 4
C. 5 and 5
D. 8 and 2

Answer

A

Explanation

`nO_(2)=64/32=2` moles, `Ne=60/20=3` moles
Total number of moles `=2+3=5`
`pO_(2)=10" bar "xx2/5=4` atm,
`pNe= 10" bar "xx3/5=6` bar