Solving for Total Work: A Monatomic Gas at 27degrees C

  • Thread starter Thread starter ManuelGR
  • Start date Start date
  • Tags Tags
    Gas Work
AI Thread Summary
The discussion focuses on calculating the total work done by a monatomic gas during two processes: a constant volume process from A to B and a constant pressure process from B to C. Participants note that the work done is represented by the area under the curve on a pressure-volume graph. It is clarified that no work is done during the constant volume process (A to B), while the work for the constant pressure process (B to C) can be calculated as the area of a rectangle. The conversation emphasizes the need to relate pressure in atmospheres to volume to accurately determine the work done. Understanding these principles is crucial for solving the problem effectively.
ManuelGR
Messages
4
Reaction score
0

Homework Statement


A monatomic gas at 27degrees C undergoes a constant volume process from A to B and a constant pressure process from B to C, as shown in the figure below:

Find the total work done during these two processes.

2ibfayh.jpg



Homework Equations


Not sure...


The Attempt at a Solution


I know I have to find the area under the curve, but I'm not sure how I have to relate the ATM's (pressure) to volume.
 
Physics news on Phys.org
ManuelGR said:

The Attempt at a Solution


I know I have to find the area under the curve, but I'm not sure how I have to relate the ATM's (pressure) to volume.

Yes, the work done is the area under the curve. For process AB, is any work done? For process BC, the area formed is a rectangle.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top