An ideal gas going through a cycle

AI Thread Summary
The discussion revolves around a homework problem involving an ideal gas undergoing a cycle, with key equations provided, including the internal energy change and work done. The original poster, Ethan, expresses confusion over not matching the expected answer despite his calculations. A peer reviews Ethan's work and confirms that it appears correct. This suggests a potential discrepancy in the provided answer key rather than in Ethan's understanding or calculations. Clarification on the problem's expected outcomes may be necessary for resolution.
Ethan Godden
Messages
33
Reaction score
0

Homework Statement


The problem is attached

Homework Equations


ΔEint=Q+W
W=-PΔV

The Attempt at a Solution


Attempted solution is in the attachment. The problem is I am not getting the same answer as the supposed correct answer.

Thank You,

Ethan
 

Attachments

Physics news on Phys.org
Ethan,
I checked your work and it all looks very good to me. I think your answer is correct!
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Minimum heat removed from gas to restore its state
Replies
5
Views
3K
Efficiency of Stirling Cycle - Is it the same as the Carnot Engine?
Replies
14
Views
1K
Why Might Statement (b) Be Incorrect in Ideal Gas Processes?
Replies
2
Views
2K
Why must we use absolute temperature for the Ideal Gas Law?
Replies
10
Views
3K
What Must Remain Constant for W = pΔV to Apply?
Replies
9
Views
3K
Internal Energy of an Ideal Gas
Replies
4
Views
2K
Calculate ideal-gas temperature of a material
Replies
2
Views
2K
How do I calculate work and heat in a PV diagram for an ideal monoatomic gas?
Replies
11
Views
2K
Is the Ideal Gas Law Valid for Balloon Problems?
Replies
5
Views
2K
Force acting on the area of the cylinder due to gas
Replies
3
Views
2K

Hot Threads

Recent Insights

Back
Top