A flask contains argon and chlorine in the ratio of 2: 1 by mass. The temperature of the mixture is 27° C. Obtain the ratio of average kinetic energy per molecule of argon to chlorine. Atomic mass of Argon =39.9 u Atomic mass of chlorine =70.9 u

Question

A flask contains argon and chlorine in the ratio of 2: 1 by mass. The temperature of the mixture is 27° C. Obtain the ratio of average kinetic energy per molecule of argon to chlorine. Atomic mass of Argon =39.9 u Atomic mass of chlorine =70.9 u (A) 1: 1 (B) 2: 1 (C) 1: 2 (D) (39.9/70.9)

Tardigrade Admin · Accepted Answer

The average kinetic energy per molecule, for any molecule is (3/2) kB ⋅ T(kB=. Boltzman constant). It depends only on temperature and is independent of the nature of the gas.

Q. A flask contains argon and chlorine in the ratio of 2: 1 by mass. The temperature of the mixture is $2 7^{\circ} C$ . Obtain the ratio of average kinetic energy per molecule of argon to chlorine.
Atomic mass of Argon $= 39.9 u$
Atomic mass of chlorine $= 70.9 u$

1 : 1

2 : 1

1 : 2

$\frac{39.9}{70.9}$

The average kinetic energy per molecule, for any molecule is $\frac{3}{2} k_{B} \cdot T (k_{B} =$ Boltzman constant).
It depends only on temperature and is independent of the nature of the gas.

Q. A flask contains argon and chlorine in the ratio of 2: 1 by mass. The temperature of the mixture is 27∘C. Obtain the ratio of average kinetic energy per molecule of argon to chlorine. Atomic mass of Argon =39.9u Atomic mass of chlorine =70.9u