---
title: What is van der Waal's Equation?
description: "Equation of state for ideal gases (from the continuum theory)\nvan der Waals’ Equation"
---

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# What is van der Waal's Equation?

## Equation of state for ideal gases (from the continuum theory) van der Waals’ Equation

**Equation of state for ideal gases (from the continuum theory)  
van der Waals’ Equation**

![(p+(a/V(^2)(\_m))·(V\_m-b)=R·Τ](https://content.leybold.com/hubfs/image-Jun-25-2020-06-56-12-71-PM.png)

a, b = constants (internal pressure, covolumes)  
Vm = Molar volume

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