Question

VISUAL 2 GAS LAWS

CHAPTER 13
Chapter 13States of Matter
1
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Date Period Name
VISUAL 2
CHAPTER 13
GAS LAWS
1. What factor do the plungers in the drawings represent? ____________________________________________________________________________________
2. Is the pressure referred to in Boyle’s law the pressure on the gas or the pressure that the gas exerts on the container? Explain your answer.
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3. According to Boyle’s law, what happens to pressure when the volume of a gas is reduced without removing any of the gas?
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4. What factors must remain constant for Boyle’s law to predict relationships? ____________________________________________________________________________________
5. If you doubled the pressure on the second cylinder in the Boyle’s law diagram, how would its volume compare with that of the first cylinder?
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6. What factors remain constant in Charles’s law? ____________________________________________________________________________________
7. In the Charles’s law drawings, if the temperature in the second cylinder is three times the temperature in the first cylinder, how does its volume compare with the first cylinder?
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8. State a relationship about volume, pressure, and temperature that combines both Boyle’s law and Charles’s law.
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9. A container of gas has a volume of 100 cm3. What would happen to the volume if you doubled both the pressure and the temperature?
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Chapter 13States of Matter
2
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Answer 1

1) they represent the volume of the system

2) The pressure referred to in Boyle's law is the pressure the gas exerts on the container.

3) pressure is increased

4) temperature

5) the volume in the second cylinder will be half of the volume of the first cylinder

6) pressure

7) the volume of the second cylinder will be three times the volume of the first cylinder.

8)PV/T = k

9)the volume remains constant

Step-by-step explanation:

Pressure is defined as force per unit area in science. Pressure of a gas as defined in the gas laws refer to the pressure the gas molecules exert on the walls of the container as they frequently collide with it in accordance with the kinetic theory of gases. The kinetic theory of gases states that gas molecules are in constant motion and collide frequently with each other and the walls of the container.

Boyle's law states that the volume of a given mass of gas is inversely proportional to its pressure at constant temperature. Hence when volume decreases, pressure increases accordingly.

Charles law states that, the volume of a given mass of gas is directly proportional to it's temperature (in Kelvin) at constant pressure.

To maintain a constant pressure, volume and temperature must increase concurrently to the same degree. Hence the application of Charles law.

PV/T = k

Hence;

P1V1/T1= P2V2/T2

P1= P

T1= T

V1= 100cm^3

V2= ??

P2= 2P

T2 = 2T

From

P1V1/T1= P2V2/T2

P1V1T2 = P2V2T1

V2 = P1V1T2/ P2T1

V2 = P ×100 ×2T/ 2P × T = 200PT/2PT

V2= 100cm^3

Hence the volume remains constant