Justin72835 wrote:Two gases occupy two containers, A and B. The gas in A, of volume 0.14 cubic meters, exerts a pressure of 1.18 MPa. The gas in B, of volume 0.21 cubic meters, exerts a pressure of 0.82 MPa. The containers are united by a tube of negligible volume and the gases are allowed to intermingle. What is the final pressure in the container if the temperature remains constant?

0.964?

2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member

Justin72835 wrote:Two gases occupy two containers, A and B. The gas in A, of volume 0.14 cubic meters, exerts a pressure of 1.18 MPa. The gas in B, of volume 0.21 cubic meters, exerts a pressure of 0.82 MPa. The containers are united by a tube of negligible volume and the gases are allowed to intermingle. What is the final pressure in the container if the temperature remains constant?

0.964?

Not quite. How did you get your answer?

EDIT: This answer is actually correct.

Last edited by Justin72835 on April 4th, 2018, 7:18 pm, edited 1 time in total.

"The fault, dear Brutus, is not in our stars,
But in ourselves, that we are underlings."

University of Texas at Austin '23
Seven Lakes High School '19

Justin72835 wrote:Two gases occupy two containers, A and B. The gas in A, of volume 0.14 cubic meters, exerts a pressure of 1.18 MPa. The gas in B, of volume 0.21 cubic meters, exerts a pressure of 0.82 MPa. The containers are united by a tube of negligible volume and the gases are allowed to intermingle. What is the final pressure in the container if the temperature remains constant?

0.964?

Not quite. How did you get your answer?

Using the law of partial pressures 1.18 MPa * (0.14/0.35) + 0.82 MPa * (0.21/0.35) = 0.964 MPa

Justin72835 wrote:Two gases occupy two containers, A and B. The gas in A, of volume 0.14 cubic meters, exerts a pressure of 1.18 MPa. The gas in B, of volume 0.21 cubic meters, exerts a pressure of 0.82 MPa. The containers are united by a tube of negligible volume and the gases are allowed to intermingle. What is the final pressure in the container if the temperature remains constant?

0.964?

Not quite. How did you get your answer?

(P1V1/Vf)+(P2V2/Vf)

2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member

Lets do this. What is the best way to increase the efficiency of a carnot engine?

2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member

MattChina wrote:Lets do this. What is the best way to increase the efficiency of a carnot engine?

[math]e=1-\frac{Tc}{Th}[/math]

Increase the ratio of hot temperature to cold temperature

correct. your turn

2019 events: Water Quality, Battery Buggy, Elastic Launch Glider, Density Lab, Circuit Lab, Thermodynamics R.C Murphy Co-Captain
Dank Memes Area Homeschool Team member