Question

(4)
13. A vessel has 6 g of oxygen at a pressure P and
temperature 400 K A small hole is made in it so
that 0, leaks out. How much 0, leaks out if the
pressure is P/2 and temperature 300 K?
(1) 5g
(2) 4 g
(3) 2g
(4) 3 g​

Answer 1

Answer:

PV= M/m

P'RT(for m grams of gas) .(i) V= M/m

′

RT

′

.(ii)

Dividing equation (ii) by (i) we get

P

P

′

=

m

m

′

T

T;

m

′

=

P

P

′

×

T

′

T

×m=(

P

P/2

)×

300

400

×6=4g

∴ Mass of oxygen leaked, Δm=m−m

′

=6−4=2g.

Explanation:

answer is 2g

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