com besc ms/mod/ bis/viA-C d East Central University slog n[East Central Univers

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com besc ms/mod/ bis/viA-C d East Central University slog n[East Central University pH.x Course Content Jump to Print Calculator bed Penodic Table uestion 7 of 10 Sapling Learning A cylinder which is in a horizontal position contains an unknown noble gas at 4.84 x 10* Pa and is sealed with a massless piston. The piston is slowly, isobarically moved inward 0.202 m, while 1.68 x 10 J of heat is removed from the gas. if the piston has a radius of 0.338 m, calculate the change in internal energy of the system Number Ed O Previous 9 Check Answer Next lint about us careers privacy policy ters of usecontact us hel

Explanation / Answer

Solution:

Let us go to the basics first.

From, the First Law of thermodynamics, we have:

U = Q - W

Q = -1.68x104 J
W = p V = p S x = - 4.84x104* 3.14*0.3382*0.202 = - 3507.19 J

Thus, U = -1.68x104 J + 3507.19 J = -13292.80 J or - 1.329x104 J (Answer)

Thanks!!!

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