How do you get a kinetic energy in joules and calories?

Question

Like if your given a molar mass and temperature, what formula can you use so you can get values of the kinetic energy into joules and calories. The only formula I can think of is root((3RT)/M) but that gives meters per second.

Answer 1

Both Joules and Calories are units of energy. Joule-unit is associated with mechanical energy and Calorie with heat.
1 calories is equal to 4.184 Joules
so
the is .239 calories ories per Joule
What you are thinking about is internal energy of a gas
Ei=(3/2)nRT
Then
R is the ideal gas constant (joule per Kelvin per mole)
n- moles of gas
T – degrees Kelvin

And Ei- is energy in joules.