The gases carbon-monoxide $$\left( {CO} \right)$$ and nitrogen at the same temperature have kinetic energies $${E_1}$$ and $${E_2}$$ respectively. Then
A.
$${E_1} = {E_2}$$
B.
$${E_1} > {E_2}$$
C.
$${E_1} < {E_2}$$
D.
$${E_1}$$ and $${E_2}$$ cannot be compared
Answer :
$${E_1} = {E_2}$$
Solution :
The gases carbon-monoxide $$\left( {CO} \right)$$ and nitrogen $$\left( {{N_2}} \right)$$ are diatomic, so both have equal kinetic energy $$\frac{5}{2}kT,{\text{i}}{\text{.e}}{\text{.}}\,{E_1} = {E_2}.$$
Releted MCQ Question on Heat and Thermodynamics >> Kinetic Theory of Gases
The average translational kinetic energy of $${O_2}$$ (relative molar mass 32) molecules at a particular temperature is $$0.048\,eV.$$ The translational kinetic energy of $${N_2}$$ (relative molar mass 28) molecules in $$eV$$ at the same temperature is
A vessel contains 1 mole of $${O_2}$$ gas (relative molar mass 32) at a temperature $$T.$$ The pressure of the gas is $$P.$$ An identical vessel containing one mole of $$He$$ gas (relative molar mass 4) at a temperature $$2\,T$$ has a pressure of