What is the ideal gas law?

PV = nRT, where P = pressure, V = volume, n = number of moles, T = temperature (Kelvin), R = 8.314 J/(mol·K).

What units should I use?

Use SI: P in Pa, V in m³, n in mol, T in K. Or use R in L·atm/(mol·K) ≈ 0.0821 with P in atm, V in L.

Solve PV = nRT: enter three of P (pressure), V (volume), n (moles), T (temperature) and get the fourth. R = 8.314 J/(mol·K).

PV = nRT (R = 8.314 J/(mol·K)). Leave one field empty to solve for it.

P (pressure, Pa)

V (volume, m³)

n (moles)

T (temperature, K)

What is the ideal gas law?: PV = nRT, where P = pressure, V = volume, n = number of moles, T = temperature (Kelvin), R = 8.314 J/(mol·K).
What units should I use?: Use SI: P in Pa, V in m³, n in mol, T in K. Or use R in L·atm/(mol·K) ≈ 0.0821 with P in atm, V in L.

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