Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

The pressure occupied by one mole of $CO_2$ at 273K is ........ (Given a for $CO_2$ = 3.592 $dm^6atmmol^{-2}$). Assume volume occupied by $CO_2$ molecules is negligible.

$(a)\;0.99\;atm\qquad(b)\;17.85\;atm\qquad(c)\;34.96\;atm\qquad(d)\;18.20\;atm$

1 Answer

Comment
A)
$[P + \large\frac{a}{V^2}][V-b] = RT$
b is negligible
$\therefore PV + \large\frac{a}{V} = RT$
(or) $V^2P - RTV + a = 0$
$V = + RT \pm \large\frac{\sqrt{R^2T^2 - 4aP}}{2P}$
Since V has only one value
$R^2T^2 = 4aP$
$P = \large\frac{R^2T^2}{4a}$
$=\large\frac{{0.0821}^2\times273\times273}{4\times3.592}$
= 34.96 atm
Hence answer is (C)
Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...