Practice Boyle's Law in Chemistry

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

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Quick Recap

Boyle's law states that for a fixed amount of gas at constant temperature, pressure and volume are inversely related.

Squeeze a gas into less space and it pushes back harder.

Showing a random 20 of 50 problems.

Example 1

easy

Using P1V1 = P2V2 with P1=2 atm, V1=3 L, V2=6 L, find P2.

Example 2

medium

A gas at

5\text{ atm}

holds

4\text{ L}

. It is decompressed to

1\text{ atm}

at constant

T

. Find the new volume.

Example 3

easy

In Boyle's law, what is held constant?

Example 4

hard

A gas is compressed from

1.0\text{ atm}

and

50\text{ L}

25\text{ L}

. At constant

T

, then compressed further to

10\text{ L}

. What is the final pressure?

Example 5

medium

4\text{ L}

gas at

3\text{ atm}

flows into a connected

6\text{ L}

vessel (total

10\text{ L}

) at constant

T

. Find the final pressure.

Example 6

easy

P1=4 atm, V1=2 L, P2=2 atm. Find V2.

Example 7

easy

A gas at

5\text{ atm}

1\text{ L}

expands at constant

T

10\text{ L}

. What is the new pressure?

Example 8

medium

Convert

V_1

V_1 = 500\text{ mL}

1.2\text{ atm}

V_2 = 1.5\text{ L}

. Find

P_2

(constant

T

Example 9

medium

A gas at 2.5 atm occupies 6 L. It is compressed to 2 L at constant temperature. Find the new pressure.

Example 10

hard

A gas at

1.6\text{ atm}

and

25\text{ L}

is compressed to

V_2

, raising pressure to

4.0\text{ atm}

at constant

T

. Find

V_2

Example 11

medium

A balloon holds 2 L at 1 atm. It rises to where pressure is 0.5 atm (constant T). Find the new volume.

Example 12

challenge

A diver's lungs hold 6 L at 3 atm underwater. Rising to the surface (1 atm) at constant T, what volume would the gas reach?

Example 13

easy

P_1 = 1.5\text{ atm}

V_1 = 4\text{ L}

V_2 = 2\text{ L}

. Find

P_2

Example 14

hard

Why does Boyle's law fail at very high pressures for real gases?

Example 15

medium

A gas in a 6 L cylinder at 5 atm leaks into a connected 4 L cylinder, total 10 L, at constant T. Find the final pressure.

Example 16

easy

P1=1 atm, V1=10 L, V2=5 L. Find P2.

Example 17

medium

A gas at

2\text{ atm}

fills

10\text{ L}

. Volume is doubled at constant

T

. What is the new

PV

product compared to the original?

Example 18

easy

Is the product P times V constant in Boyle's law?

Example 19

hard

P_1 = 1\text{ atm}

V_1 = 1\text{ L}

. If pressure increases by

20\%

at constant

T

, what is the new volume?

Example 20

easy

Boyle's law applies to a gas at constant ___ and constant amount.

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