Question 295: Thermodynamics & KTG

Question

A flask contains hydrogen and oxygen in the ratio of $2: 1$ by mass at temperature $27^{\circ} \mathrm{C}$. The ratio of average kinetic energy per molecule of hydrogen and oxygen respectively is:

Accepted Answer

K.E. per molecule $$ = \left( {{f \over 2}KT} \right)$$
$${{\mathrm{average{{(K.E)}_{hydrogen}}}} \over {\mathrm{average{{(K.E)}_{oxygen}}}}} = {{{f_{\mathrm{hydrogen}}}} \over {{f_{\mathrm{oxygen}}}}} = 1$$

Answer

1 : 1

Answer

4 : 1

Answer

1 : 4

Answer

2 : 1

Thermodynamics & KTG

A flask contains hydrogen and oxygen in the ratio of 2: 1 by mass at temperature 27^{\circ} \mathrm{C}. The ratio of average kinetic energy per molecule of hydrogen and oxygen respectively is:

Choose the correct answer: