Question

Hydrogen is the lightest gas. Explain with the help of an experiment.

Answer 1

Answer:

Hydrogen is the lightest of all known molecular substances. Even helium has a molar mass that is twice as large. As a result, the density of hydrogen is very small (0.0824 g/L at 25 oC and 1 atm) and is over 14 times smaller than that of air. ... The most readily used source of hydrogen is natural gas.

Explanation:

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Answer 2

Answer:

Hydrogen is the lightest of all known molecular substances. ... Another result of having such a small molar mass is that hydrogen's melting point (-259.14 oC or 14.0 K) and boiling point (-252.5 oC or 20.7 K) are extremely low. The most readily used source of hydrogen is natural gas.