Chemical Forums
1 Hour
1 Day
1 Week
1 Month
Forever
April 29, 2024, 03:28:15 AM
Forum Rules
: Read This Before Posting
Home
Help
Search
Login
Register
Chemical Forums
Chemistry Forums for Students
Undergraduate General Chemistry Forum
Gas Laws - finding fraction of the air expelled
« previous
next »
Print
Pages: [
1
]
Go Down
Topic: Gas Laws - finding fraction of the air expelled (Read 1329 times)
0 Members and 1 Guest are viewing this topic.
GPCR pathway
New Member
Posts: 4
Mole Snacks: +0/-0
Gas Laws - finding fraction of the air expelled
«
on:
January 18, 2019, 01:42:26 AM »
When an open flask containing air is heated from 27C to 87C, what fraction of the air in the flask is expelled? Assume that the volume of the flask and the atmospheric pressure are constant. Answer in mol.
How do you compute for this? is it n1T1=n2T2? because if it is then how do you work around to find the answer?
Logged
Borek
Mr. pH
Administrator
Deity Member
Posts: 27665
Mole Snacks: +1801/-410
Gender:
I am known to be occasionally wrong.
Re: Gas Laws - finding fraction of the air expelled
«
Reply #1 on:
January 18, 2019, 02:52:57 AM »
Use PV=nRT to calculate amount of gas present initially and at the end (use just symbols, some of them will be unknown, don't worry about that at this stage). Use these to find the answer - and see what cancels out.
Logged
ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
titrations.info
Print
Pages: [
1
]
Go Up
« previous
next »
Sponsored Links
Chemical Forums
Chemistry Forums for Students
Undergraduate General Chemistry Forum
Gas Laws - finding fraction of the air expelled