Q.

Nitrogen gas is at 300ºC temperature. The temperature (in K) at which the rms speed of a H2 molecule would be equal to the rms speed of a nitrogen molecule, is____.(Molar mass of N2 gas 28 g).

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answer is 0040.93.

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Detailed Solution

Let T is the temperature of H2 gasGiven : VH2=VN2​⇒3RTMH2=3R273+300MN2​⇒T=57328×2=57314=40.93 K
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Nitrogen gas is at 300ºC temperature. The temperature (in K) at which the rms speed of a H2 molecule would be equal to the rms speed of a nitrogen molecule, is____.(Molar mass of N2 gas 28 g).