Match Column I with Column II (Pressure exerted by gas in figures) (Consider atmospheric pressure equal to 1 atm and density of mercury = 13.6 g/ml, if needed)
Column I
Column II
A) 1.25 atm
P)
B) 2.0 atm
Q)
C) 0.25 atm
R)

S)

Question

Match Column I with Column II (Pressure exerted by gas in figures) (Consider atmospheric pressure equal to 1 atm and density of mercury = 13.6 g/ml, if needed)

Column I	Column II
A) 1.25 atm	P)
B) 2.0 atm	Q)
C) 0.25 atm	R)
	S)

TestHub · Accepted Answer

(P) Open-end manometer, open arm 19 cm higher: P gas = 76 + 19 = 95 cm Hg = 1.25 atm (A). (Q) Massless piston with 76 cm Hg column above: P gas = 76 + 76 = 152 cm Hg = 2.0 atm (B). (R) Closed-end manometer with evacuated arm 19 cm higher: P gas = 19 cm Hg = 0.25 atm (C). (S) Glycerine (ρ = 2.72 g/ml), open arm 0.95 m higher: equivalent Hg height = 95 × 2.72/13.6 = 19 cm, so P gas = 76 + 19 = 95 cm Hg = 1.25 atm (A). Hence A → P,S; B → Q; C → R.

Chemistry - Ideal Gas Question with Solution | TestHub

Options:

Doubts & Discussion