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States of Matter - SS1 Chemistry Past Questions and Answers - page 2

11

Charles's Law describes the relationship between the volume and temperature of a gas at constant:

 

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A

Pressure

 

B

Number of moles

 

C

Gas constant

 

D

All of the above

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12

According to Charles's Law, when the temperature of a gas sample increases, what happens to its volume?

 

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A

Volume decreases

 

B

Volume increases

 

C

Volume remains constant

 

D

Volume cannot be determined

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13

Avogadro's Law states that equal volumes of gases, at the same temperature and pressure, contain equal:

 

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A

Volumes

 

B

Numbers of moles

 

C

Densities

D

Masses

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14

According to Avogadro's Law, when the number of moles of a gas increases, what happens to its volume?

 

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A

Volume decreases

 

B

Volume increases

 

C

Volume remains constant

 

D

Volume cannot be determined

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15

Which gas law directly combines Boyle's, Charles's, and Avogadro's laws into a single equation?

 

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A

Ideal Gas Law

 

B

Dalton's Law

 

C

Graham's Law

 

D

Gay-Lussac's Law

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16

The Ideal Gas Law equation is expressed as:

 

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A

PV = nRT

 

B

V/T = k

 

C

P1V1 = P2V2

 

D

P1/T1 = P2/T2

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17

In the Ideal Gas Law equation, what does 'R' represent?

 

View related lesson
A

Ideal gas constant

 

B

Temperature

 

C

Pressure

 

D

Volume

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18

In the Ideal Gas Law equation, what does 'R' represent?

 

View related lesson
A

Ideal gas constant

 

B

Temperature

 

C

Pressure

 

D

Volume

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19

Which gas law can be derived from the Ideal Gas Law by holding two variables constant?

 

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A

Charles's Law

 

B

Boyle's Law

 

C

Avogadro's Law

D

All of the above

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20

A sample of gas has an initial volume of 4.5 L at a pressure of 2.5 atm. If the pressure is increased to 4.0 atm while keeping the temperature constant, using Boyle’s law what will be the new volume of the gas?

 

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