Question

What will be the mass ratio of SO2 to NO so that their partial pressure in a container becomes equal?
1-4
3:4
1-1
32 : 15​

Answer 1

Answer:

32:15is the correct one

Answer 2

Given - Gases whose partial pressure has to be equal - sulphur dioxide and nitrogen monoxide.

Find - Mass ratio of sulphur dioxide and nitrogen monoxide for their partial pressure to be equal.

Solution - Partial pressure is directly proportional to number of moles, keeping other values constant. Hence, number of moles of sulphur dioxide to nitrogen monoxide will be calculated.

Mass (SO2)/Molecular weight (SO2) = Mass (NO)/ Molecular weight (NO)

Mass (SO2)/Mass (NO) = Molecular weight (SO2)/ Molecular weight (NO)

Mass (SO2)/Mass (NO) = 64/30

Mass (SO2)/Mass (NO) = 32/15.

Hence, 32 : 15 is the mass ratio of SO2 to NO so that their partial pressure in a container becomes equal.