• Question: What's your favourite gas and why

    Asked by grey499may on 2 Feb 2024.
    • Photo: Alexander de Bruin

      Alexander de Bruin answered on 2 Feb 2024:


      I’m duty bound to say Hydrogen! It’s a remarkably useful gas that will be needed to make all manner of industrial processes and transport better for the environment

    • Photo: Andrew McDowall

      Andrew McDowall answered on 2 Feb 2024:


      I think I might be addicted to oxygen. I just can’t seem to live without it.

    • Photo: Sharron Kenny

      Sharron Kenny answered on 2 Feb 2024:


      oxygen – you just cant live without it. my second favorite would be helium. its always good for a laugh and great at parties very useful.

    • Photo: Tina-Jaine Haigh

      Tina-Jaine Haigh answered on 2 Feb 2024:


      Helium. It makes your voice go squeaky if you breathe it, and it’s funny! The change in your voice is because sound travels at different speeds in different gases.

    • Photo: Martin McCoustra

      Martin McCoustra answered on 2 Feb 2024:


      I agree with Sharron as without oxygen we can’t live!

    • Photo: Rachel Edwards

      Rachel Edwards answered on 2 Feb 2024:


      I like nitrogen. Our bodies need oxygen, but nitrogen makes up about 78% of the air we breathe.
      We use liquid nitrogen at work and we have to be very careful that there’s good ventilation for when the liquid nitrogen turns to gas, because if the amount in the air gets too high it’s really bad for us. So why is it still my favourite? Because you can cool it down to make liquid nitrogen, and that’s really useful for experiments.

    • Photo: Chigozie Onuba

      Chigozie Onuba answered on 4 Feb 2024:


      I would say oxygen, need it to be alive.

    • Photo: David Bremner

      David Bremner answered on 5 Feb 2024:


      Nitrous Oxide (N2O), it just makes me laugh.

    • Photo: Michael Schubert

      Michael Schubert answered on 5 Feb 2024:


      I like them all because the planet needs them to function! Right now, though, I’m most interested in hydrogen. Did you know that hydrogen makes up 73 percent of the mass of the universe? Helium is another 25 percent and everything else (including all the oxygen in the universe) is only 2 percent all together!

    • Photo: Bruno Silvester Lopes

      Bruno Silvester Lopes answered on 5 Feb 2024:


      Oxygen because I can’t live about it. Who will do all the amazing experiments and make fascinating discoveries 😉

    • Photo: Graeme Barker

      Graeme Barker answered on 6 Feb 2024:


      Nitrogen – as chemists, my research group does a lot of reactions which don’t work if exposed to air or oxygen. Nitrogen is a cheap and easy to use gas which we use to displace air from our reaction containers.

    • Photo: Kirsty Ross

      Kirsty Ross answered on 19 Feb 2024:


      I’d say Helium because it makes your voice sound funny. However, we are actually running out of it, as it is so light it can escape our atmosphere. This is important as it is also used in medical equipment.

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