Toán học

Gas Law Calculator

Ideal Gas Law Calculator (PV = nRT)

Volume V (m³)

Moles n (mol)

Temperature T (K)

🌐

Detailed Guide Coming Soon

We're working on a comprehensive educational guide for the Gas Law Calculator in your language. The content below is shown in English.

Là gì Gas Law Calculator?

▾

Gas law calculators solve Boyle's, Charles's, Gay-Lussac's, and the combined gas law for pressure, volume, and temperature relationships of ideal gases.

PrimeCalcPro provides professional-grade tools trusted by businesses and academics.

Công thức

▾

f(x)PV = nRT (ideal gas law); P₁V₁/T₁ = P₂V₂/T₂ (combined gas law)

Chú giải biến

▾

Ký hiệu	Tên	Đơn vị	Mô tả
P	Pressure	atm/Pa	—
V	Volume	litres/m³	—
n	Moles of gas	mol	—
R	Gas constant	0.0821 L·atm/(mol·K)	—
T	Temperature	Kelvin	—

Cách Gas Law Calculator

▾

1Boyle's law: P₁V₁ = P₂V₂ (constant T)
2Charles's law: V₁/T₁ = V₂/T₂ (constant P)
3Gay-Lussac's: P₁/T₁ = P₂/T₂ (constant V)
4Combined: P₁V₁/T₁ = P₂V₂/T₂

Ví dụ có lời giải

▾

Ví dụ 1

Cho trước:Boyle's: V₁=4L, P₁=2atm, P₂=4atm

Kết quả:V₂ = P₁V₁/P₂ = 2×4/4 = 2L

Ứng dụng thực tế

▾

🏗️

Chemistry laboratory calculations

🔬

Scuba diving safety (decompression)

📊

HVAC system design

🏥

Industrial gas processing

Gas Law Summary

▾

Law	Constant	Equation
Boyle's	Temperature	P₁V₁=P₂V₂
Charles's	Pressure	V₁/T₁=V₂/T₂
Gay-Lussac's	Volume	P₁/T₁=P₂/T₂
Combined	Amount	P₁V₁/T₁=P₂V₂/T₂
Ideal gas	—	PV=nRT

Câu hỏi thường gặp

▾

When should I use ideal gas law vs combined?

Ideal: when n (moles) is constant or unknown. Combined: when gas amount is fixed, conditions change.

What temperature units should I use?

Always Kelvin (K = °C + 273.15) in gas law equations. Celsius and Fahrenheit don't work.

Is the ideal gas approximation accurate?

Good for most gases at normal conditions. Poor at high pressure or low temperature. Use van der Waals for precision.

Tài liệu tham khảo

›Gas laws — Khan Academy

Mathematically verified

Reviewed October 2026

Our methodology

Nhận Mẹo Toán Hàng Tuần

Tham gia cùng 12.000+ người đăng ký để nhận mẹo về máy tính mỗi tuần.

🔒

100% Miễn phí

Không cần đăng ký

✓

Chính xác

Công thức đã xác minh

⚡

Tức thì

Kết quả khi nhập

📱

Sẵn sàng di động

Mọi thiết bị