Jump to content

Thermo TAT qcm17


Go to solution Solved by Cath,

Recommended Posts

Posted

Bonjour 

je ne comprend pas le calcul du qcm 17 B du poly du TAT

si on pourrai me détailler le calcul, ca serai super!

merci

Révélation

 

Capture d’écran 2018-12-04 à 21.25.35.png

  • Ancien Responsable Matière
  • Solution
Posted (edited)

Salut ! 

Il faut utiliser la formule

\Delta P = \Delta C \ast T\ast R

Ton C vaut 3000 mmol/L

Ton T vaut T = 26,85+273,15 = 300 K

Et ton R vaut environ 8,5 (on te le donnera au concours)

 

Donc tu multiplies le tout :

3000x300x8,5 = 7650x10^3 Pa

Soit 76,5x10^5 Pa

 

Tu sais que 1 atm= 10^5 Pa (ça aussi on te le donnera au concours)

 

Donc tu as bien 76,5 atm ! (environ 74,79 atm)

 

Dis moi si tu bloques sur quelque chose ? 

Edited by Sc22

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...