# Question #bd933

##### 1 Answer
Nov 9, 2015

Ideal Gas constant

#### Explanation:

In the ideal gas equation,
$R = 0.08206 \frac{L \cdot a t m}{m o l \cdot K}$

In thermochemistry, it's value is changed
$R = 8.3145 \frac{J}{m o l \cdot K}$

It depends on what you're looking for in your equation in determining what constant to use. It will also help you in solving the equation if you keep all of your units. Since the R has all of the constants it will lead you in finding your missing variable.