Question

a vessel has 6 gram of oxygen at a pressure p and temperature 400 Kelvin a small hole is made in it so that auto leaks out how much auto leaks out if the pressure is 2 by 2 and temperature 300 Kelvin

Answer 1

Wo2 = 6 gm n1 =(6/32)

P1 = P

T1 = 400 K

P2 = P/2

T2 = 300 K

P1V1 P2V2

------ = ------- V1 = V2 (given)

n1T1 n2T2

n1 P1T2 P x 300 6

-- = ------ = ---------- = ---

n2 P2T1 P/2 x 400 4

n2 = n1 x (4/6) = (6/32) x (4/6) = 1/8

moles of oxygen leaks out = (6/32) – 1/8

6-4 2

--- = ---

32 32

Wo2 leaks out =(2/32) x 32 = 2gm