What is universal molar gas constant?

Answers.com > Wiki Answers > Categories > Science > Chemistry > What is universal molar gas constant?
Answer:
The gas constant (also known as the molar, universal, or ideal gas constant, normally indicated by the symbol R) is a physical constant which is used in many of the fundamental equations in the physical sciences, such as the ideal gas law and the Nernst equation. It is equivalent to the Boltzmann constant, but expressed in units of energy (i.e. the pressure-volume product) per kelvin per mole (rather than energy per kelvin per particle). The gas constant uses the same units as specific entropy.

Its value is:

R = 8.314472(15) J · K-1 · mol-1

The two digits in parentheses are the uncertainty (standard deviation) in the last two digits of the value.

The gas constant occurs in the simplest equation of state, the ideal gas law, as follows:

PV = nRT = nRT / V = RT / Vm

where:

P: is the absolute pressure
T: is absolute temperature
V: is the volume the gas occupies
n: is the amount of gas (the number of gas molecules, usually in moles)
Vm: is the molar volume
First answer by D.adams. Last edit by D.adams. Contributor trust: 1 [recommend contributorrecommended]. Question popularity: 3 [recommend question].

Can you answer these Chemistry questions?

Relevant answers:

Related videos:

View more science videos

Shopping for Chemistry deals?

Find Coupons and Promo Codes on Coupons by Answers.com
FIND MORE COUPONS AND PROMO CODES

Related Ads:

Related ads:

Sign in using:

Answers.com members:




Create account
Join using:

Join Answers.com:





Already a member?
Sign in
Why join?
Joining is free and easy. You can still be anonymous; just choose any username and password.

  • Get notified about updated answers
  • Follow your favorite categories
  • Get credit for your contributions
  • Customize your profile
  • Answer questions more easily
Not convinced? Read more.
Lost your password?

You may already have an Answers.com account.
Click here to connect your accounts.  
If you don't want to connect accounts, you can start a new one from scratch.
Minor details...


  

Connect your accounts...




Lost password?
Why do we need your email address?
We will use your email address to send you updates (if you request them) about questions you ask, answer or track, and to help you retrieve your password if you forget it.

Your email address will not be used for any other purpose without your permission.
Already have an Answers.com account? Connect your accounts!
By doing so, you include all of your history (contributions, messages, profile) from your Answers.com account in your Facebook account.

If you don't connect accounts, your new account will be starting from scratch.

Home

Welcome
Help center
Browse categories
Random question
Community forum