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The volume of an ideal gas is adiabatically reduced from 200 L to 74.3 L. The...

The volume of an ideal gas is adiabatically reduced from 200 L to 74.3 L. The initial pressure and temperature are 1.00 atm and 300 K. The final pressure is 4.00 atm.

? = 8.314 J/mol.K , ????????? = 1.4, ??????????? = 1.67 and 1 atm = 1.013 × 10^5 Pa. mol.K

(a) Is the gas monatomic or diatomic?

(b) What is the final temperature?

(c) How many moles are in the gas?

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