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Physics & engineering

Ideal gas pressure

Ideal gas pressure: Ideal gas pressure P = nRT/V, using R = 8.31446261815324 J/(mol·K).

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How it works

Ideal gas pressure P = nRT/V, using R = 8.31446261815324 J/(mol·K). Output is pascals.

Input definitions

Amount of gas (mol)
Enter the value in the labeled unit.
Absolute temperature (K)
Enter the value in the labeled unit.
Volume (m³)
Enter the value in the labeled unit.

A worked example

Amount of gas (mol)
1
Absolute temperature (K)
300
Volume (m³)
0.025
99773.551418

Assumptions & limits

Ideal educational model in the stated SI units. Real equipment, structural design and safety decisions need appropriate professional analysis; losses are excluded unless entered.

Sources & review

Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.

Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.

Common questions

Can I enter Celsius directly?

No. Convert to kelvin by adding 273.15 first. Real gases can deviate strongly at high pressure or near condensation.

How does Ideal gas pressure work?

Ideal gas pressure P = nRT/V, using R = 8.31446261815324 J/(mol·K). Output is pascals.

What should I check before using Ideal gas pressure?

Ideal educational model in the stated SI units. Real equipment, structural design and safety decisions need appropriate professional analysis; losses are excluded unless entered.

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