Work Done in Compressing Oxygen: Thermo Analysis

AI Thread Summary
The discussion focuses on calculating the work done by an external agent when compressing 1.12 moles of oxygen from 22.4 liters at 1.32 atm to 153 liters, maintaining constant temperature. The relevant equation for this is W = nRT log (Vf/Vi), applicable under isothermal conditions. Participants confirm that this formula is correct for the scenario presented. The conversation emphasizes the importance of understanding thermodynamic principles in solving the problem. Overall, the thread provides clarity on the calculation method for work in gas compression.
abrowaqas
Messages
113
Reaction score
0

Homework Statement


Calculate the work done by an external agent in compressing 1.12 mole of oxygen from a volume of 22.4 litre and 1.32 atm pressure to 153 lit at same temperature.


Homework Equations



related to thermodynamics.

The Attempt at a Solution

 
Physics news on Phys.org
abrowaqas said:

Homework Equations



related to thermodynamics.

Can you be more specific?
 
i think this will work W = nRT log (Vf/Vi)... is it correct... taking T is constant. for isothermal
 
It will work. Use it.
 
ok thanks
 

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 '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

Thermodynamics: calculating work question
Replies
6
Views
2K
Which Gas Compression Process Requires the Most Work?
Replies
1
Views
2K
Is the Work Done by the Piston on the Gas Counted Twice in PV Diagrams?
Replies
5
Views
2K
Compression ratio and volume reduction of CO2
Replies
12
Views
1K
Deriving an expression for change in internal energy
Replies
5
Views
1K
Stationary vertical cylinder with heavy piston
Replies
3
Views
3K
Understanding Molar Volume at STP
Replies
2
Views
1K
Where is the force coming from to compress the spring
Replies
8
Views
2K
Work done isothermal, adiabatic ideal gas
Replies
1
Views
2K
Work Done by Gas: Ideal Diatomic Process
Replies
7
Views
3K

Hot Threads

Recent Insights

Back
Top