General Knowledge - Chemistry - Discussion

Discussion Forum : Chemistry - Section 1 (Q.No. 7)
7.
The molecules of which gas have highest speed?
H2 at -73oC
CH4 at 300 K
N2 at 1,027oC
O2 at 0oC
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
83 comments Page 6 of 9.

Masooma said:   1 decade ago
I think A is right. Because hydrogen is a lightest gas and mass decrease then speed increase.

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.

Himanshu saxena said:   1 decade ago
The answer is only (A) the correct explanation is given by @Chemistry Nepal.

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.

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.

AJAYPANDEY said:   1 decade ago
Velocity is inversely proportional to molecular weight.

Greg said:   1 decade ago
The boiling point of gases is negative.

SISAY ANTENEH said:   1 decade ago
Hydrogen gas is the right answer because it the lightest gas.

Bhawna said:   1 decade ago
Hydrogen is correct because it is lightest of all and hence can easily move.


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