Fig. 5.1 shows a gas contained in a cylinder enclosed by a piston. piston -pressure gauge -cylinder gas 100 cm Fig. 5.1 At first, the length of cylinder containing the gas is 100 cm. The pressure of the gas, shown by the pressure gauge, is 300 kPa. The area of cross-section of the cylinder is 0.12 m. (a) O Describe the motion of the molecules of the gas. (ii) Use the idea of momentum to explain how the molecules exert a force on the walls of the cylinder.

Fig. 5.1 shows a gas contained in a cylinder enclosed by a piston. piston -pressure gauge -cylinder gas 100 cm Fig. 5.1 At first, the length of cylinder containing the gas is 100 cm. The pressure of the gas, shown by the pressure gauge, is 300 kPa. The area of cross-section of the cylinder is 0.12 m. (a) O Describe the motion of the molecules of the gas. (ii) Use the idea of momentum to explain how the molecules exert a force on the walls of the cylinder.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

5
Fig. 5.1 shows a gas contained in a cylinder enclosed by a piston.
piston
-pressure gauge
-cylinder
gas
100 cm
Fig. 5.1
At first, the length of cylinder containing the gas is 100 cm. The pressure of the gas, shown by the
pressure gauge, is 300 kPa. The area of cross-section of the cylinder is 0.12 m.
(a) () Describe the motion of the molecules of the gas.
(ii) Use the idea of momentum to explain how the molecules exert a force on the walls of the
cylinder.

(b) The piston is moved so that the new length of cylinder occupied by the gas is 40cm. The
temperature of the gas is unchanged.
() Calculate the new pressure of the gas.
pressure =
(ii) Explain, in terms of the bebaviout of the molecules, why the pressure has changed.

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The absolute pressure of a gas in an enclosed cylinder on a day is 3.67 A low pressure storm comes upthe conditions in the gas cylinder remain unchanged does the absolute pressure of the gas increase, decrease, or remain the same? What about the gauge pressure ?
Please and thank you! Make sure the answer is in the correct units!
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