The figure above shows the path in the P-V plane that is followed by a reversibl

Question

The figure above shows the path in the P-V plane that is followed by a reversible Carnot engine that uses monatomic Argon gas as its working substance and operates by taking heat Qh = 4.3 kJ from a hot reservoir at Th = 1070 oC to do work and deposits waste energy Qc into a cold reservoir at Tc = 24 oC. At A, the Argon gas has a total internal energy of 15 kJ.

If the gas occupies a volume of 0.001 m3 at point A, what it is the pressure at that point?

What is the value for the area bounded by this thermal cycle on the p-V diagram?

Explanation / Answer

If the gas occupies a volume of 0.001 m3 at point A, what it is the pressure at that point?

ANSWER ) ----------------------------------------------------------------------------------->>>>>>>>>>>>>>>>>>>

Internal enegy = 3/2 * n * R * T

3/2 * n * R * T = 1 * 10 ^ 3 ( at point A )

n = (1 * 10 ^ 3) / ( 1.5 * 1343 * 8.314 )

n =0.05970 KPa

What is the value for the area bounded by this thermal cycle on the p-V diagram?

ANSWER ) --------------------------------------------------------------------->>>>>>>>>>>>>>>

P V = n R T

P =(0.05970 * 8.314 * 1343)/(0.001)

P= 6.66592 * 10 ^ 5 pa

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.