1. Tardigrade
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  3. Physics
  4. Three flasks of identical volume are filled separately by (a) 1 gram of H2 (b) 1 gram of O2 (c) 1 gram of CO2. They are immersed in a tank of water so that all of them attain same temperature. The pressures P1,P2 and P3 have the o

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Q. Three flasks of identical volume are filled separately by (a) 1 gram of $H_2$ (b) 1 gram of $O_2$ (c) 1 gram of $CO_2$. They are immersed in a tank of water so that all of them attain same temperature. The pressures $P_1,P_2$ and $P_3$ have the o

Thermal Properties of Matter

Solution:

We know, PV $=\frac{ m }{ M } RT$
Given the flasks have same volume, and mass $m =1 gm$ for all the gases, the temperature attained is also same.
Hence the equation can be reduced to, PM=Constant, where $M$ is the molecular weight.
since $M _{1}< M _{2}< M _{3}$
$\therefore P _{1}> P _{2}> P _{3}$