Sodium Azide (NaN₃) Decomposes to Form Sodium Metal and Nitrogen

Sodium azide (NaN₃) decomposes to form sodium metal and nitrogen gas, and it is used to rapidly generate gas to fill automobile airbags during a crash.In a particular test of an airbag, the N₂ gas generated does 6.25 kJ of expansion work under a constant pressure of 1.015 atm.What is the volume change experienced by the gas? (101.3 J= 1 L. atm)

A) -6.16 L
B) +60.8 L
C) +61.7 L
D) +62.6 L
E) +6,160 L