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.

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1.Easy
n = 1 molV = 10 LT = 25 °CP = ?

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

n = 1 molV = 10 LT = 25 °CR = 8.314 J/(mol·K)
P = kPa
2.Easy
n = 0.5 molV = 25 LT = 60 °CP = ?

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

n = 0.5 molV = 25 LT = 60 °CR = 8.314 J/(mol·K)
P = kPa
3.Medium
280 g of CH₄P = 700 kPaT = 10 °CV = ?

What volume V does 280 g of CH₄ occupy at 700 kPa and 10 °C? Treat it as an ideal gas.

m = 280 gM = 16.04 g/molP = 700 kPaT = 10 °CR = 8.314 J/(mol·K)
V = L
4.Medium
130 g of CO₂P = 250 kPaT = 60 °CV = ?

What volume V does 130 g of CO₂ occupy at 250 kPa and 60 °C? Treat it as an ideal gas.

m = 130 gM = 44.01 g/molP = 250 kPaT = 60 °CR = 8.314 J/(mol·K)
V = L
5.Hard
State 1State 2

A fixed amount of N₂ goes from 350 kPa, 5 L, 10 °C to 650 kPa and 110 °C. Find the new volume V2.

P1 = 350 kPaV1 = 5 LT1 = 10 °CP2 = 650 kPaT2 = 110 °C
V2 = L
6.Hard
State 1State 2

A fixed amount of CO₂ goes from 200 kPa, 5 L, 15 °C to 550 kPa and 170 °C. Find the new volume V2.

P1 = 200 kPaV1 = 5 LT1 = 15 °CP2 = 550 kPaT2 = 170 °C
V2 = L

Answer key

  1. 1. P = 247.9 kPa
  2. 2. P = 55.4 kPa
  3. 3. V = 58.71 L
  4. 4. V = 32.73 L
  5. 5. V2 = 3.643 L
  6. 6. V2 = 2.796 L

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