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`P = ( "n" *"R"* "T" )/ "v" `

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The **Ideal Gas Law for Pressure** calculator computes the pressure (P) of a gas based on the temperature (T), volume (V) and number of moles (n) using the Ideal Gas Law and the universal gas constant (R) .

**INSTRUCTIONS**: Choose units and enter the following:

- (
**n**) This is the amount of substance (gas) - (
**T**) This is the temperature - (
**V**) This is the volume

**Gas Pressure (P):** The calculator returns the pressure in pascals (Pa). However, this can be automatically converted to compatible units via the pull-down menu.

The **ideal gas law** is the equation of state of a hypothetical ideal gas. It is a good approximation to the behavior of many gases under many conditions. The ideal gas law is often represented in its common form:

where:

**P**- pressure of the gas**T**- temperature of the gas**n**- amount of the gas, typically specified in moles (mol)**V**- volume of the gas**R**- the universal gas constant

This calculator solves the Ideal Gas Law equation for pressure (P).