The diagram figure below shows a glass tube containing enclosed air by a thread of mercury 50mm long when the tube is held in a horizontal...

      

The diagram figure below shows a glass tube containing enclosed air by a thread of mercury 50mm
long when the tube is held in a horizontal position.
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(i) The tube is slowly raised in a vertical position with the open end facing up. Determine
the new length of the trapped air (tube has same area of cross-section; atmospheric pressure = 750mmHg)
(ii) Account for the difference in the column of trapped air using kinetic theory of matter assuming that temperature is constant.

  

Answers


sharon
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(ii) The pressure on trapped air is higher when the tube is vertical than when it is horizontal Increase in pressure lead to reduction in volume in order to increase the number of collisions per unit time between the air particle and the alls of the glass. This increases the air pressure to balance the increased external pressure.
sharon kalunda answered the question on April 3, 2019 at 13:14


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