Sapling Learning Map A cylinder which is in a horizontal position contains an un

Question

Sapling Learning Map A cylinder which is in a horizontal position contains an unknown noble gas at 4.63 × 104 Pa and is sealed with a massless piston. The piston is slowly, isobarically moved inward 0.215 m, while 1.95 x10t J of heat is removed from the gas. If the piston has à radius of 0.305 m, calculate the change in internal energy of the system. Number U- |-56728815 | J There is additional feedback available View this feedback by clicking on the bottom divider bar. Click on the divider Incorrect bar again to hide the additional feedback Close O Previous Give Up & View Solution # Try Again O Next 41 Exit Explanation

Explanation / Answer

for isobaric process,

Work done = P deltaV

= (4.63 x 10^4 Pa) (pi 0.305^2)(-0.215)

= - 2909 J

deltaU = Q - W

= - (1.95 x 10^4) - (-2909)

= -1.66 x 10^4 J .....Ans

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