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Question
Would it be easier to drink water with a straw on the top of Mount Everest or at the base? Explain.
Solution
When you drink through a straw, the pressure inside the straw reduces (as the air is withdrawn by mouth) and the liquid is pushed up to your mouth by atmospheric pressure. Thus, drinking with a straw makes use of pressure difference to force the liquid into your mouth. So, if the pressure difference is less it will be difficult to drink through a straw. On the top of Mount Everest, atmospheric pressure is very low. Hence, it will be difficult to drink water with a straw on the top of Mount Everest as compared to at the base.
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