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 6 of 9.
SUNIL said:
1 decade ago
I think none got to the right concepts b4 posting...
speed v of gas molecule is related 2 both mass m & temp. T as given by
v ~ (T)1/2 / (m)1/2
sorry i can't write here as reqd. but it is, v proportional to whole to the under-root of T/m.
speed v of gas molecule is related 2 both mass m & temp. T as given by
v ~ (T)1/2 / (m)1/2
sorry i can't write here as reqd. but it is, v proportional to whole to the under-root of T/m.
Okoh adem said:
1 decade ago
Everyone knows H2 is very light but the mass of others like N2 should be known for calculation: temp/mass.
Claire said:
1 decade ago
Hydrogen is very light hence has ability to move fast but it is at low temperature. Methane though heavier than hydrogen is at very high temperatures which increases kinetic energy. This will now call for calculations i.e. temp/mass.
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.
Gopalakrishnan said:
1 decade ago
Answere is H2 molecule because of.
Speed of gas = Temp/Mass.
Speed of gas = Temp/Mass.
Priya said:
1 decade ago
But mass have important role therefore A is correct answer.
Raza said:
1 decade ago
C is the correct option. As with increase in temp kinetic energy increase which increase the speed of molecules.
Gourav said:
1 decade ago
It is simply related to mass.
Jayanta said:
1 decade ago
I think option C is correct. Because as temperature increase speed of gas is also increase.
Jan rare said:
1 decade ago
Right! C is the right answer. As temperature increases movement of gases are more frequent.
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