A $0\mathrm{.}6$m$^3$ tank contains nitrogen gas at $500$kPa and $300$K$.$ Now the gas is compressed isothermally to a volume of $0\mathrm{.}2$m$^3.$

$1-1.$ The final pressure of the tank is

$($a$)500$kPa

$($b$)1000$kPa

$($c$)1500$kPa

$($d$)2000$kPa

$($e$)2500$kPa

$1-2.$ The work done on the gas during this compresion process is

$($a$)200$kJ

$($b$)270$kJ

$($c$)300$kJ

$($d$)330$kJ

$($e$)350$kJ