Unit 9: Worksheet: Boyle's, Charles' Combined

Match the following values with what they represent:

What is the new volume of a gas at 25 degrees Celsius if it occupies 50.2 cm³ at 53 degrees Celsius?

Groups:

(a) Volume

,

(b) Temperature

,

(c) Pressure

,

(d) Amount

• Amount is held constant

• T2 = 53 degrees C = 326 K

• V1 = ?

• T1 = 25 degrees Celsius = 298K

• V2 = 50.2 cm3

• Pressure is held constant.

Which equation will we use to solve this problem?

What is the new volume of a gas at 25 degrees Celsius if it occupies 50.2 cm³ at 53 degrees Celsius?

• Boyle's Law

  P1V1= P2V2

Match the following values:

The volume of Carbon Dioxide gas at 99.3 kPa was measured at 455 cm³.

What will be its volume if the pressure is adjusted to 202.6 kPa?

Groups:

(a) Pressure

,

(b) Volume

,

(c) Temperature

,

(d) Amount

• V1 = 455 cm3

• P2 = 202.6 kPa

• V2 = ?

• Amount of gas is constant

• P1 = 99.3 kPa

• Temperature is constant.

Which equation will we use to solve this problem?

The volume of Carbon Dioxide gas at 99.3 kPa was measured at 455 cm³.

What will be its volume if the pressure is adjusted to 202.6 kPa?

• Boyle's Law

  P1V1= P2V2

At what temperature would a gas at 90.9 kPa of pressure occupy 25.0 cm3 if it occupies 15.0 cm3 at 45 degrees Celsius and 112 kPa?

Groups:

(a) Temperature

,

(b) Pressure

,

(c) Volume

,

(d) What are we solving for?

• P2 = 112 kPa

• T1 = ?

• V1 = 25.0 cm3

• T2= 45 celsius = 318K

• V2 = 15.0 cm3

• P1= 90.9 kPa

Which equation will we use to solve this problem?

At what temperature would a gas at 90.9 kPa of pressure occupy 25.0 cm3 if it occupies 15.0 cm3 at 45 degrees Celsius and 112 kPa?

• Boyle's Law

  P1V1= P2V2

At 1750 cm³ container of ammonia gas is exerting a pressure of 275 kPa while at a temperature of 130 degrees Celsius. Calculate the pressure of this same amount of gas in a 2500 cm³ container at a temperature of 27 degrees Celsius.

Groups:

(a) Temperature

,

(b) Pressure

,

(c) Volume

,

(d) What are we solving for?

• P1= 275 kPa

• T2= 27 C = 300K

• V1 = 1750 cm3

• V2 = 2500 cm3

• P2 = ?

• T1 = 130 C = 403K

Which equation should we use to solve this problem?

At 1750 cm³ container of ammonia gas is exerting a pressure of 275 kPa while at a temperature of 130 degrees Celsius. Calculate the pressure of this same amount of gas in a 2500 cm³ container at a temperature of 27 degrees Celsius.

• Boyle's Law

  P1V1= P2V2