What is the average kinetic energy (in kJ/mol) of nitrous oxide (N₂O) molecules at 30.0°C?

Question

Quizplus · Accepted Answer

The average kinetic energy (E) can be calculated using the equation E = (3/2)RT, where R is the gas constant and T is the temperature in Kelvin. Converting 30.0°C to Kelvin gives 303 K. 
We can calculate the molar mass of nitrous oxide as (14.01 g/mol + 2(15.99 g/mol)) = 44.01 g/mol. 
Substituting these values into the equation, we get: 
E = (3/2)(8.31 J/mol*K)(303 K) 
E = 3.78 kJ/mol 
Therefore, the answer is B, with an average kinetic energy of 3.78 kJ/mol at 30.0°C.

What Is the Average Kinetic Energy (In KJ/mol) of Nitrous