10th grade The combined and ideal gas laws worksheet

The combined and ideal gas laws

Grade 10 Science Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   A balloon holds 0.5 mol of air at 1 atm and 25 °C. Using R = 0.08206 L·atm/(mol·K), what is its volume, to 0.01 L, Bo?
2. 2.

   A sealed bag holds 2 mol of air at 1 atm and 10 °C. Using R = 0.08206 L·atm/(mol·K), what is its volume, to 0.01 L, Esme?
3. 3.

   A balloon holds 0.25 mol of air at 0.95 atm and 37 °C. Using R = 0.08206 L·atm/(mol·K), what is its volume, to 0.01 L, Jun?
4. 4.

   A balloon holds 1.00 mol of air at 1.00 atm and 20 °C. Using R = 0.08206, what is its volume, Kira?

   • 24.06 L
   • 2437.25 L, using 8.314
   • 1.64 L, using 20 instead of 293.15
5. 5.

   A bike tire holds 2.0 L of air at 3.0 atm (absolute) and 27 °C. Using R = 0.08206, how many moles of air, Luz?

   • 0.24 mol
   • 0.0024 mol, using 8.314
   • 2.71 mol, using 27 instead of 300.15
6. 6.

   Which setup finds V₂ when pressure, volume and temperature all change, Noah?

   • V₂ = V₁ × T₂ ÷ T₁, leaving out the pressures
   • V₂ = P₁V₁T₂ ÷ (P₂T₁)
   • V₂ = P₂V₁T₁ ÷ (P₁T₂)
7. 7.

   A 4.0 L balloon at 1.0 atm and 300 K goes to 0.50 atm and 250 K. What is its new volume, Pia?

   • 6.67 L
   • 1.67 L
   • 9.6 L
8. 8.

   Why must the temperatures in the combined gas law be in kelvins, Ren?

   • Celsius values make the volumes come out too small
   • Its ratios need a temperature scale with a true zero
   • Kelvins keep the pressure fixed
9. 9.

   In P₁V₁/T₁ = P₂V₂/T₂, if T stays fixed, which law is left, Tala?

   • Gay-Lussac's law, P₁/T₁ = P₂/T₂
   • Charles's law, V₁/T₁ = V₂/T₂
   • Boyle's law, P₁V₁ = P₂V₂
10. 10.

    In P₁V₁/T₁ = P₂V₂/T₂, if P stays fixed, which law is left, Zee?

    • Charles's law, V₁/T₁ = V₂/T₂
    • Boyle's law, P₁V₁ = P₂V₂
    • Gay-Lussac's law, P₁/T₁ = P₂/T₂