The Root-Mean-Square Speed (Thermal Speed)for a Certain Gas at 100°C

Multiple Choice

The root-mean-square speed (thermal speed) for a certain gas at 100°C is 0.500 km/s.If the temperature of the gas is now increased to 200°C,the root-mean-square (thermal) speed will be closest to

A) 563 m/s.
B) 634 m/s.
C) 707 m/s.
D) 804 m/s.
E) 1000 m/s.