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) 1.50 atm
P)
B) 1.75 atm
Q)
C) 0.50 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) 1.50 atm	P)
B) 1.75 atm	Q)
C) 0.50 atm	R)
	S)

TestHub · Accepted Answer

(P) Open-end manometer, open arm 38 cm higher: P gas = 76 + 38 = 114 cm Hg = 1.50 atm (A). (Q) Massless piston with 57 cm Hg column above: P gas = 76 + 57 = 133 cm Hg = 1.75 atm (B). (R) Closed-end manometer with evacuated arm 38 cm higher: P gas = 38 cm Hg = 0.50 atm (C). (S) Glycerine (ρ = 2.72 g/ml), open arm 1.9 m higher: equivalent Hg height = 190 × 2.72/13.6 = 38 cm, so P gas = 76 + 38 = 114 cm Hg = 1.50 atm (A). Hence A→P,S; B→Q; C→R.

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