Isobaric Expansion for Ideal Gas

T2 = (P2V2/T1) * (P1V1/P2V2)In summary, the initial state of the gas is an ideal gas with a pressure of 30 psi, a volume of 2 ft3, and a temperature of 20 degrees Celsius. During the isobaric expansion to 3 ft3, the pressure remained constant and the final temperature can be calculated using the initial pressure, volume, and temperature. By setting the moles of the initial and final states equal to each other, the final temperature can be found using the equation T2 = (P2V2/T1) * (P1V1/P2V2).
  • #1
Windseaker
46
0
Given: working fluid is an Ideal gas

P=30 psi
V=2ft3
T=20degreeC

Q. what is initial state of the gas when?

Isobaric expansion to 3ft3
 
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  • #2
Isn't what they gave you the initial state of the gas?
 
  • #3
ok finial state--sorry
 
  • #4
Since the expansion is isobaric, the pressure stayed the same. They also specified the final volume, so all you need is the final Temperature. You already know the initial states for PiVi = nRTi (except for the moles); the final temperature in PfVf = nRTf can be found by setting the moles of the initial state and the moles of the final state equal to each other.
 
  • #5
I throught is was

PiVi/Ti = P2V2/T2 ?
 
  • #6
Windseaker said:
I throught is was

PiVi/Ti = P2V2/T2 ?

P1V1 = nRT1
P2V2 = nRT2

nR = P1V1/T1 = P2V2/T2
 

Related to Isobaric Expansion for Ideal Gas

What is isobaric expansion?

Isobaric expansion is a thermodynamic process in which a system expands at a constant pressure.

What is the difference between isobaric expansion and isochoric expansion?

The main difference between isobaric and isochoric expansion is that isobaric expansion occurs at a constant pressure, while isochoric expansion occurs at a constant volume.

What are the applications of isobaric expansion?

Isobaric expansion is commonly used in the study of gases and in various industrial processes, such as refrigeration and air conditioning.

What factors affect isobaric expansion?

The factors that affect isobaric expansion include the initial and final volume of the system, the amount of substance, and the pressure.

How is isobaric expansion represented in a pressure-volume diagram?

In a pressure-volume diagram, isobaric expansion is represented as a horizontal line, as the pressure remains constant throughout the process.

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