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Ideal Gas Law Calculator

Ideal Gas Law Calculator

Calculate pressure, volume, temperature, or amount using PV = nRT. Perfect for chemistry and physics students.

100% FreeStep-by-Step SolutionsChemistry & Physics
PV = nRT Calculator
Enter three variables to solve for the fourth
Related Gas Laws

Boyle's Law (Constant T, n)

P1V1=P2V2P_1V_1 = P_2V_2

Pressure inversely proportional to volume

Charles's Law (Constant P, n)

V1T1=V2T2\frac{V_1}{T_1} = \frac{V_2}{T_2}

Volume directly proportional to temperature

Gay-Lussac's Law (Constant V, n)

P1T1=P2T2\frac{P_1}{T_1} = \frac{P_2}{T_2}

Pressure directly proportional to temperature

Avogadro's Law (Constant P, T)

V1n1=V2n2\frac{V_1}{n_1} = \frac{V_2}{n_2}

Volume directly proportional to amount

Real-World Applications

Laboratory Applications

  • • Gas collection and measurement experiments
  • • Calculating molecular weights of gases
  • • Determining gas densities
  • • Stoichiometric calculations in reactions

Industrial Applications

  • • HVAC system design and optimization
  • • Compressed gas storage calculations
  • • Chemical reactor design
  • • Pneumatic system pressure calculations

Environmental Science

  • • Atmospheric pressure and altitude relations
  • • Air pollution concentration calculations
  • • Greenhouse gas emission measurements
  • • Weather balloon calculations
Standard Conditions Reference

STP (Standard Temperature & Pressure)

Temperature: 0°C (273.15 K)
Pressure: 1 atm (101,325 Pa)
Molar Volume: 22.4 L/mol

NTP (Normal Temperature & Pressure)

Temperature: 20°C (293.15 K)
Pressure: 1 atm (101,325 Pa)
Molar Volume: 24.0 L/mol

SATP (Standard Ambient)

Temperature: 25°C (298.15 K)
Pressure: 1 bar (100,000 Pa)
Molar Volume: 24.5 L/mol
Ideal Gas Law Calculator - Solve PV=nRT Equations | MathIsimple