According to answer key option 4 is orrect but my answer is

Last updated: 6/10/2023

According to answer key option 4 is orrect but my answer is 600R 2 A monoatomic ideal gas undergoes an adiabatic process from temperature 300 K to 600 K The gas has 2 moles calculate work done by this ideal gas NCERT Pg 3121 w 3124 2 200 R J 1 600 R J Y 3 450 R J 4 900 R J