Weather ballons are only half filled with helium gas before they are released to carry measuring equipment into the upper atmosphere. Explain, using the kinectic theory why they are not fully inflated.
I just need ideas or points =] Cheers
Answer:
well hot air rises.so the helium might expand due to sunny weather or something
i needed a couple points myself... i bet the answer to your question is in the chemistry book they gave you
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