QJEEM23Ph0084: JEE Main 2023 Physics - Class 11 JEEM23Ph0084 Solution: A flask contains hydrogen and oxygen in the ratio of by mass at …

Question

Verified Solution • 2025–26 Session moderate

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 $= \left( {{f \over 2}KT} \right)$

${{\mathrm{average{{(K.E)}_{hydrogen}}}} \over {\mathrm{average{{(K.E)}_{oxygen}}}}} = {{{f_{\mathrm{hydrogen}}}} \over {{f_{\mathrm{oxygen}}}}} = 1$

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