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 3 of 9.

Apoorv sahu said:   1 decade ago
As according to 'higher the temp. Higher will be speed' then out of all 4 N2 must have higher speed.

Hassan said:   1 decade ago
Increase in temperature increase in speed.

Sagar said:   1 decade ago
Hydrogen atomic mass is less then all elements. So its speed is greater then all elements.

Surender said:   1 decade ago
Temperature/Mass of hydrogen greater than others gas.

Harsh mishra said:   1 decade ago
H is correct because his mole run fast all other elements in the periodic table.

Sachin said:   8 years ago
The root mean square velocity = square root of 3RT/ M.
Here T in kelvin and M in molar mass.
The value of T/M is higher for H2 among all given option.
So, velocity of H2 should be highest.

M. Shoaib said:   5 years ago
I think C is correct answer.

Naveed sultan said:   6 years ago
A is right because of low mass of hydrogen gas.

Guddu Bharti said:   7 years ago
Gas molecules speed = temperature/molecular wt.
Hydrogen gas has the highest value of that ratio.
So hydrogen gas has high-speed compared to other gasses.

Pangetmo said:   7 years ago
A is correct because of the speed of molecules increases in hotter temperature.


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