At which of the following temperature would the molecules of a gas have twice the average kinetic energy they have at 20^(@)C

At which of the following temperature would the molecules of a gas hav

1.	At which of the following temperature would the molecules of a gas have twice the average kinetic energy they have at 20^(@)C
Answer» `40^@C` `80^@C` `313^@C` `586^@C` ANSWER :C