Originally 2 $47.0 ^ { \circ } \mathrm { C }$

Short Answer

Originally 2.00 mol of gas are at STP. If the temperature changes to $47.0 ^ { \circ } \mathrm { C }$ and the pressure decreases to half of what it was, how many liters do the two moles now occupy? (1 atm=101 kPa, R=8.31 J/mol . K)