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Answer to Question #43316 in Molecular Physics | Thermodynamics for Benjamin K

Question #43316
A cylinder + piston initially contain 5.10^-3 m^3 of helium gas, at a pressure of 1.00 atm and with a temperature of 50C. The gas is heated and allowed to expand at a constant pressure until its volume is 8x10^-3 m^-3m (Helium is a monatomic gas).

(i) How many moles of helium is contained by the cylinder + piston?

(ii) How much work is done by the gas on the environment during the expansion?

(iii) What is the final temperature of the gas?

(iv) How much head was added during the expansion? (State assumptions you make to calculate this)

(v) What has changed in the internal energy of the gas during the expansion? (State assumptions you make to calculate this)
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