The Figure Shows a PV Diagram for 8

Multiple Choice

The figure shows a pV diagram for 8.3 g of nitrogen gas (N₂) in a sealed container. The temperature T₁ of the gas in state 1 is 79°C. What are (a) the pressure p₁ of the gas in state 1 and (b) the temperature T₂ of the gas in state 2? The ideal gas constant is R = 8.314 J/mol ∙ K = 0.0821 L ∙ atm/mol ∙ K, and the ATOMIC weight of nitrogen is 14 g/mol.

A) (a) 86 atm, (b) 700°C.
B) (a) 19 atm, (b) 700°C.
C) (a) 86 atm, (b) 160°C.
D) (a) 19 atm, (b) 160°C.