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 3 of 9.
Nagaraju said:
1 decade ago
Hydrogen gas because it is lightest element than all it is easly moved.
RON said:
1 decade ago
v = 3RT/M
Given H2 have temp. -73+273= 346 c there mass is 2.
And N2 have temp. 1073+273 = 1346 there mass m 14.
So here on calculating we find Vh = 346 X 14.
Vn2 = 1346 X 2.
Vh = approx 2 times of H2.
Given H2 have temp. -73+273= 346 c there mass is 2.
And N2 have temp. 1073+273 = 1346 there mass m 14.
So here on calculating we find Vh = 346 X 14.
Vn2 = 1346 X 2.
Vh = approx 2 times of H2.
Chemistry Nepal said:
1 decade ago
Its not like that.
The speed of gas is calculated by a relation.
Root Mean square velocity µ(rms) = (3RT/M).
From this relation we can calculate speed.
Only mass could not be taken into consideration here because temperature is specified.
So after calculation.
Speed of Hydrogen gas = 157380 unit.
Speed of Methane gas = 68385 unit.
Speed of Nitrogen gas = 142356 unit.
Speed of oxygen gas = 46128 unit.
The speed of gas is calculated by a relation.
Root Mean square velocity µ(rms) = (3RT/M).
From this relation we can calculate speed.
Only mass could not be taken into consideration here because temperature is specified.
So after calculation.
Speed of Hydrogen gas = 157380 unit.
Speed of Methane gas = 68385 unit.
Speed of Nitrogen gas = 142356 unit.
Speed of oxygen gas = 46128 unit.
Bhawna said:
1 decade ago
Hydrogen is correct because it is lightest of all and hence can easily move.
SISAY ANTENEH said:
1 decade ago
Hydrogen gas is the right answer because it the lightest gas.
Greg said:
1 decade ago
The boiling point of gases is negative.
AJAYPANDEY said:
1 decade ago
Velocity is inversely proportional to molecular weight.
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.
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.
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).
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