What are the Thermodynamic Processes for a Monoatomic Ideal Gas?

In summary, the conversation discusses a cyclic process for a monoatomic ideal gas, consisting of three parts: isochor, adiabatic, and an unknown process. The equations for finding Q and W are mentioned, as well as the difficulty in determining dU3. It is noted that the unknown process is isobaric, with p3 = p1.
  • #1
lesodk
16
0

Homework Statement



A Cyclic proces of three parts for a monoatomic idealgas:

1-2:
Isochor, where:
p2 = 2*p1
v2 = v1

2-3:
Adiabatic, from v2 = v3, where:
v3 > v2
p3 = p1

3-1:
unknow proces, where
v4 = v1
p4 = p1

My problem is to determine
Q1, Q2, Q3 and W1, W2, W3 and dU1, dU2, dU3

I can't find U3, W3

Homework Equations


dU1 + dU2 + dU3 = 0

W1 = 0, dU = Q (isochor)
Q2 = 0, dU = -W (adiabatic)

The Attempt at a Solution


I'm really lost on the part finding Q3, W3
:(
 
Physics news on Phys.org
  • #2
Have you determined dU1 and dU2?
 
  • #3
yes i have
 
  • #4
And is the data plotted on a PV curve?
 
  • #5
Nope, i don't have that information.
 
  • #6
lesodk said:
A Cyclic proces of three parts for a monoatomic idealgas:

1-2:
Isochor, where:
p2 = 2*p1
v2 = v1

2-3:
Adiabatic, from v2 = v3, where:
v3 > v2
p3 = p1

3-1:
unknow proces, where
v4 = v1
p4 = p1
Shouldn't these two values be v3 and p3?
 
  • #7
my point is just that after v3 and p3, you go back to the initial place v1 and p1.
Thats what i mean by 3-1.
 
  • #8
lesodk said:
my point is just that after v3 and p3, you go back to the initial place v1 and p1.
Thats what i mean by 3-1.
Yes but note that p3 = p1, therefore this third 'unknown process' (3-1) is isobaric.
 

Related to What are the Thermodynamic Processes for a Monoatomic Ideal Gas?

What is a cyclic process?

A cyclic process is a series of events or steps that repeat in a specific pattern, eventually returning to the starting point. This can occur in various systems, such as in chemical reactions, ecological systems, and mechanical systems.

Can you provide an example of a cyclic process?

One example of a cyclic process is the water cycle, where water evaporates from bodies of water, forms clouds, falls as precipitation, and then flows back into bodies of water through rivers and streams.

What causes confusion in understanding cyclic processes?

One common cause of confusion in understanding cyclic processes is the complexity and interconnectedness of different stages or steps. It can be challenging to keep track of all the components and their relationships in a cyclic process.

How are cyclic processes different from linear processes?

Linear processes involve a clear and direct progression from one stage to the next, with a definitive end point. In contrast, cyclic processes have no definitive end point and repeat in a continuous loop.

How are cyclic processes important in scientific research?

Cyclic processes are important in scientific research because they help to explain and predict natural phenomena. By understanding the patterns and cycles within a system, scientists can make more accurate predictions and develop more effective solutions to problems.

Similar threads

  • Introductory Physics Homework Help
Replies
2
Views
728
  • Introductory Physics Homework Help
Replies
7
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
1K
  • Introductory Physics Homework Help
Replies
1
Views
2K
  • Classical Physics
Replies
1
Views
954
  • Introductory Physics Homework Help
Replies
20
Views
8K
  • Advanced Physics Homework Help
Replies
1
Views
4K
  • Engineering and Comp Sci Homework Help
Replies
1
Views
2K
  • Engineering and Comp Sci Homework Help
Replies
1
Views
3K
  • Introductory Physics Homework Help
Replies
4
Views
5K
Back
Top