Gas Laws Explorer — iLearnSTEM Labs

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labs.ilearnstem.ca — Virtual Science Laboratories

Ontario Curriculum · Grades 9–12Beta

Gas Laws Explorerfree piston

P 101.3 kPa (1.00 atm)V 12.31 LT 300 K (27 °C)n 0.50 mol

P·V1247.1 kPa·L

V ÷ T0.0410 L/Kconstant while n, P fixed (Charles)

P·V ÷ (n·T)8.314 kPa·L/(mol·K)= R ✓

law in playP fixed by the atmosphere — V ∝ T (Charles) · V ∝ n (Avogadro)

Free — floats on the air · ideal gas, PV = nRT

Equilibrium — P·V ÷ T = 4.157 kPa·L/K = n·R ✓ (R = 8.314 kPa·L/(mol·K))

Chemistry Lab 02 · Gas Laws Explorer — drag to orbit, scroll to zoom

Gas

Amount n0.50 mol

45 particles shown — count ∝ n (Avogadro)

Temperature T300 K (27 °C)

gas laws need kelvin — always

Piston

The piston slides until inside pressure matches the atmosphere (101.325 kPa). P is constant — change T and watch V follow (Charles’s law), or change n (Avogadro’s hypothesis).

V = nRT ÷ P_atm = 12.31 L

Display

Particle cloud

The particles illustrate kinetic molecular theory — they bounce faster as √T and their count tracks n. The gauge and every number come from the ideal gas law itself.