$2($b$)\_$#$2$: A well$-$insulated rigid tank contains $3\mathrm{.}2$ kg of air initially at $300$ K and $600$ kPa $.$ The

change in internal energy of the air is $2225$ kJ $.$ Assume ideal gas behavior for the air. Determine

the final temperature, $C,$ and the final pressure, bar, using the following methods.

a$)$ Table A$-22$

b$)$ Assuming constant specific heat using Table A$-20.$ Report the percent error in this

assumption.

c$)$ Modify the solution from part $($b$)$ until your temperature is within $+-1\%$ of part $($a$).$