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A mercury column of length 10 cm is in the middle of a horizontal tube of length 1 m closed at both ends containing same amount of a gas in both columns. If the tube is placed vertically, the mercury column will shift through a distance of 225 13 ~cm from its initial position. Find the final pressure of gas in upper column (in cm of Hg ) when the tube is placed vertically.

Correct answer

8

Step-by-step solution

Case - 1 Case - 2 aligned & (P_g-P ) (45+ 225 13 )= (P_g-P+10 ) (45- 225 13 )=n R T & P_g-P=8 ~cm aligned

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