General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 7)
7.
The molecules of which gas have highest speed?
Discussion:
83 comments Page 8 of 9.
Yasir akhun said:
1 decade ago
K.E directly prop.to Temperature. So at this point of view C is correct but According to Graham's law Rate of effusion of a gas is inversely proportional to the square root of the molar mass of its particles so H is very small molar mass in Periodic Table 1.006 somehow, and N is 14. So the correct answer is A.
Mussy said:
1 decade ago
You use the root mean square velocity because the temperature is given and don't blindly consider only the mass of the element.
Masooma said:
1 decade ago
I think A is right. Because hydrogen is a lightest gas and mass decrease then speed increase.
Rakesh ameta said:
1 decade ago
At high temperature gases molecule will has high speed.
SANTOSH VARPE said:
1 decade ago
By considering RMS velocity equation, speed of the molecule depends on both the factors i.e.Temp. & Molar mass equally. By calculating the RMS values hydrogen will give more value of RMS.
Hence hydrogen will have highest speed at that temp. Than rest molecules given above.
Hence hydrogen will have highest speed at that temp. Than rest molecules given above.
Deepali said:
1 decade ago
Speed of the molecule is directly proportional to its temperature as the temperature is increased random motion of the molecule is also increases. Its right answer is (C).
Mike said:
1 decade ago
Hydrogen is not the answer JUST because of weight. Relative temperature also has a role. Just remember nitrogen and hydrogen both have very different temperatures in their liquid states and gas states.
The answer IS Hydrogen, NOT nitrogen.
The answer IS Hydrogen, NOT nitrogen.
Sai srihari said:
1 decade ago
Speed of molecules is directly proportional to the temperature.
So when we have increase the temperature of molecules speed also increased.
So when we have increase the temperature of molecules speed also increased.
AJAYPANDEY said:
1 decade ago
Velocity is inversely proportional to molecular weight.
Greg said:
1 decade ago
The boiling point of gases is negative.
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