Ideal gas law worksheet with answers

Free printable Ideal gas law worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

New worksheetPractise online with hints

For teachers: free to print, copy and use in class. Every new worksheet has new values and its own answer key. A link to ExamProblems on your course page is appreciated.

Name: ____________________   Date: ____________

1.Easy
n = 1.5 molV = 5 LT = 85 °CP = ?

A rigid tank holds an ideal gas. Find its pressure P.

n = 1.5 molV = 5 LT = 85 °CR = 8.314 J/(mol·K)
P = kPa
2.Easy
n = 1.5 molV = 50 LT = 85 °CP = ?

A rigid tank holds an ideal gas. Find its pressure P.

n = 1.5 molV = 50 LT = 85 °CR = 8.314 J/(mol·K)
P = kPa
3.Medium
180 g of CO₂P = 750 kPaT = 40 °CV = ?

What volume V does 180 g of CO₂ occupy at 750 kPa and 40 °C? Treat it as an ideal gas.

m = 180 gM = 44.01 g/molP = 750 kPaT = 40 °CR = 8.314 J/(mol·K)
V = L
4.Medium
170 g of N₂P = 200 kPaT = 80 °CV = ?

What volume V does 170 g of N₂ occupy at 200 kPa and 80 °C? Treat it as an ideal gas.

m = 170 gM = 28.01 g/molP = 200 kPaT = 80 °CR = 8.314 J/(mol·K)
V = L
5.Hard
State 1State 2

A fixed amount of He goes from 400 kPa, 10 L, 15 °C to 800 kPa and 160 °C. Find the new volume V2.

P1 = 400 kPaV1 = 10 LT1 = 15 °CP2 = 800 kPaT2 = 160 °C
V2 = L
6.Hard
State 1State 2

A fixed amount of CO₂ goes from 250 kPa, 5 L, 15 °C to 300 kPa and 220 °C. Find the new volume V2.

P1 = 250 kPaV1 = 5 LT1 = 15 °CP2 = 300 kPaT2 = 220 °C
V2 = L

Answer key

  1. 1. P = 893.3 kPa
  2. 2. P = 89.33 kPa
  3. 3. V = 14.2 L
  4. 4. V = 89.1 L
  5. 5. V2 = 7.516 L
  6. 6. V2 = 7.131 L

Full step-by-step solutions: practise this topic on examproblems.com.