Trying to work out isothermal heat transfer

AI Thread Summary
The discussion revolves around calculating heat transfer for a gas undergoing isothermal expansion. The initial parameters include a gas mass of 0.115 kg, an increase in volume from 0.25 m³ to 0.56 m³, an initial temperature of 32°C, and a pressure of 1.2 bar. Key equations referenced include the work done during expansion and the relationship between pressure, volume, and temperature. Although initial attempts at solving the problem were unsuccessful, the participant ultimately found a solution. The conversation emphasizes the importance of showing work even when the final answer is not achieved.
abbie230391
Messages
5
Reaction score
0

Homework Statement


A gas mass 0.115kg undergoes an increase in volume from 0.25m cubed to 0.56m cubed. initial temp 32 degrees c and initial pressure 1.2bar. work out heat transfer??


Homework Equations


W=P1V1 ln(V2/V1)
W=mRT ln(V2/V1)
P1V1/T1=P2V2/T2
Q=U2-U1+W
PV=mRT


The Attempt at a Solution


loads but non worked
 
Physics news on Phys.org
It doesn't matter if you didnt get the answer. Still show us how you tried it.
 
its ok i worked it out now
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »

Similar threads

To find total work done from multiple reversible processes
Replies
3
Views
2K
Why does a gas behave as ideal if the Isotherm and Isenthelp
Replies
3
Views
1K
Net heat in a thermodynamic cycle
Replies
2
Views
1K
Calculate Work (w) for Isothermal Gas Expansion/Compression
Replies
4
Views
2K
Reversible Isothermal Expansion Steam
Replies
2
Views
3K
Efficiency of Stirling Cycle - Is it the same as the Carnot Engine?
Replies
14
Views
1K
Is PV^gamma Constant in Adiabatic Processes?
Replies
9
Views
5K
Isothermal, isobaric and adiabatic
Replies
6
Views
2K
Thermodynamics: find the change of internal energy, the work and Q
Replies
10
Views
2K
Essentially comparison of isothermal and adiabatic transformations
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top