Your Lungs Hold 4 $27 ^ { \circ } \mathrm { C }$

Multiple Choice

Your lungs hold 4.2 L of air at a temperature of $27 ^ { \circ } \mathrm { C }$ and a pressure of 101.3 kPa. How many moles of air do your lungs hold? $( R = 8.31 \mathrm {~J} / \mathrm { mol } \cdot \mathrm { K } )$

A) 0.17 moles
B) 0.15 moles
C) 0.19 moles
D) 0.21 moles
E) 0.23 moles