Question

why hydrogen cannot be used in hot air ballon even though it is the lightest gas​

Answer 1

Answer:

If you take the same volume of air and helium and weight them on a scale, the helium will weight less. ... Hydrogen is another gas lighter than air; it is even lighter than helium. Hydrogen is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn't burn.

Although helium is twice as heavy as (diatomic) hydrogen, they are both so much lighter than air that this difference only results in hydrogen having 8% more buoyancy than helium.

Answer 2

★Question :

➙ why hydrogen cannot be used in hot air ballon even though it is the lightest gas ?

★Required Answer :

➙ because hydrogen can explode and catch fire .

The exploding balloon demonstrates that nothing can be taken for granted in science . if you buy a balloon from a vendor , its probably filled with helium . Air has some helium in it but helium is lighter than air . Helium is a special gas called noble gas which means it doesn't burn . when a match is held near a balloon filled with helium , the balloon pops . that's it !! but when a match is held near a hydrogen balloon , BOOM !! a real explosion . This is because hydrogen burns easily .