The figure below shows a master cylinder sealed at one end. Instead of brake fluid, the cylinder contains air. When a force is applied to the...

The figure below shows a master cylinder sealed at one end. Instead of brake fluid, the cylinder contains air.

When a force is applied to the piston, the length d changes from 6.0cm to 4.0cm. The pressure of the air increases but the temperature stays constant.
(i) Describe how the molecules of air exert a pressure.
(ii) Explain why the pressure increases even though the temperature stays constant.
(iii) The initial pressure of the air inside the cylinder is 1.0 x 10⁵ pa. Calculate the final pressure of the air.

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i) Molecules hit against walls/ piston
ii) Molecules hit more often/ more frequently due to smaller volume/ molecules too close.

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Kavungya answered the question on May 31, 2019 at 05:38

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