# Problem: If the gas inside the flask is cooled so that its pressure is reduced from 797.3 torr to a value of 715.7 torr what will be the height of the mercury in the open-end arm? (Hint: The sum of the heights in both arms must remain constant regardless of the change in pressure.)

###### FREE Expert Solution
• Recall that when the height of the gas in an open end arm is higher compared to the one next to the gas:

• Pinitial = Patm + height difference (Pgas = Pinitial)

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###### Problem Details

If the gas inside the flask is cooled so that its pressure is reduced from 797.3 torr to a value of 715.7 torr what will be the height of the mercury in the open-end arm? (Hint: The sum of the heights in both arms must remain constant regardless of the change in pressure.)

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