If an Ideal Gas Molecule Has a Speed of $20 ^ { \circ } \mathrm { C }$

Multiple Choice

If an ideal gas molecule has a speed of 0.50 km/s at $20 ^ { \circ } \mathrm { C }$ what is its speed at $80 ^ { \circ } \mathrm { C } ?$

A) 1000 m/s
B) 550 m/s
C) 500 m/s
D) 2000 m/s