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One mole of Neon at T=298K and P=10.0 bar expands to final pressure of 1.0 bar....

One mole of Neon at T=298K and P=10.0 bar expands to final pressure of 1.0 bar. Calculate the final temperature, q, w, change in energy, enthalpy, eand entropy when the expansion is carried our according to the following scenarios:

A. They system is held in a heat bath that maintains constant temperature and the expansion is carried out very slowly and carefully, with the external pressure being gradually reduced from 10 bar to 1 bar.

B. The system is held in a constant-temperature bath, but the external pressure is reduced suddenly from 10 bar to 1.0 bar at the very begining and kept at 1.0 bar thereafter.

C. The system is thermally insulated and the external pressure is reduced slowly and carefully.

D. The system is thermally insulated, and expand into an evacuated container having 10 times the volume of the flask. No external pressure opposes the expansion.

Solutions

Expert Solution

n=1 mol,T=298K, P1=10bar,P2=1 bar,

a) The process is Isothermal

final Temp T2=298K

b) This process is also Isothermal;

final Temp, T2=298K,

c)thermally insulated system means the process is adiabatic:

Amanda K answered 1 year ago

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