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Grade 12 Gas Laws Worksheet with Answers

Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Chemistry

Unit 2: Quantitative ChemistryGasesNGSS HS-PS3-2

Boyle's and Charles's laws for how gas pressure, volume and temperature are related. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Gas Laws

Grade 12 · Chemistry

Score___ / 12

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Class

Date

Learning goal: Gases · NGSS HS-PS3-2

Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.

Example

At constant pressure, if a gas is heated, what happens to its volume?

Answer: it increases

RememberGas laws

Boyle: P₁V₁ = P₂V₂more pressure → less volumeCharles: V₁/T₁ = V₂/T₂hotter → bigger (T in K)Ideal: PV = nRTR = 0.0821 L·atm/(mol·K)
  1. 1

    A gas at 300 kPa has a volume of 20 L. At constant temperature, the pressure rises to 1200 kPa. What is the new volume?

    P₁ = 300 kPaV₁ = 20 LP₂ = 1200 kPaV₂ = ?
  2. 2

    A gas has a volume of 5 L at 250 K. At constant pressure it is heated to 500 K. What is its new volume?

    V₁ = 5 LT₁ = 250 KV₂ = ?T₂ = 500 K
  3. 3

    A gas at 50 kPa has a volume of 8 L. At constant temperature, the pressure rises to 100 kPa. What is the new volume?

    P₁ = 50 kPaV₁ = 8 LP₂ = 100 kPaV₂ = ?
  4. 4

    A gas has a volume of 10 L at 200 K. At constant pressure it is heated to 400 K. What is its new volume?

    V₁ = 10 LT₁ = 200 KV₂ = ?T₂ = 400 K
  5. 5

    A gas at 150 kPa has a volume of 2 L. At constant temperature, the volume grows to 6 L. What is the new pressure?

    P₁ = 150 kPaV₁ = 2 LP₂ = ?V₂ = 6 L
  6. 6

    A gas has a volume of 4 L at 300 K. At constant pressure it is heated to 600 K. What is its new volume?

    V₁ = 4 LT₁ = 300 KV₂ = ?T₂ = 600 K
  7. 7

    A gas has a volume of 3 L at 300 K. At constant pressure it is heated to 600 K. What is its new volume?

    V₁ = 3 LT₁ = 300 KV₂ = ?T₂ = 600 K
  8. 8

    A gas has a volume of 10 L at 400 K. At constant pressure it is heated to 800 K. What is its new volume?

    V₁ = 10 LT₁ = 400 KV₂ = ?T₂ = 800 K
  9. 9

    A gas has a volume of 5 L at 400 K. At constant pressure it is heated to 600 K. What is its new volume?

    V₁ = 5 LT₁ = 400 KV₂ = ?T₂ = 600 K
  10. 10

    A gas at 50 kPa has a volume of 18 L. At constant temperature, the pressure rises to 150 kPa. What is the new volume?

    P₁ = 50 kPaV₁ = 18 LP₂ = 150 kPaV₂ = ?
  11. 11

    A gas at 150 kPa has a volume of 8 L. At constant temperature, the pressure rises to 300 kPa. What is the new volume?

    P₁ = 150 kPaV₁ = 8 LP₂ = 300 kPaV₂ = ?
  12. 12

    A gas at 150 kPa has a volume of 10 L. At constant temperature, the volume grows to 30 L. What is the new pressure?

    P₁ = 150 kPaV₁ = 10 LP₂ = ?V₂ = 30 L

★ Challenge corner for fast finishers

Does a kilogram of feathers weigh more than a kilogram of iron?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/chemistry/12/gas_laws

Answer key (click to show)
  1. 1.5 L
  2. 2.10 L
  3. 3.4 L
  4. 4.20 L
  5. 5.50 kPa
  6. 6.8 L
  7. 7.6 L
  8. 8.20 L
  9. 9.7.5 L
  10. 10.6 L
  11. 11.4 L
  12. 12.50 kPa
  13. ★no — they weigh the same (challenge corner)

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