A pressure cooker has the lid screwed on tight. A small opening with A = 0.0075 in^2 is covered with a petcock that can be lifted

Question 1

A pressure cooker has the lid screwed on tight. A small opening with A = 0.0075 in2 is covered with a petcock that can be lifted to let steam escape. How much mass should the petcock have to allow boiling at 250 F with an outside atmosphere at 15 psia?

Question 2

Some petcocks are held down by a spring, the problem deals with one that stays on due to its weight.

kratos · Answer 1 · 2020-05-07T16:32:30+0000

Some petcocks are held down by a spring, the problem deals with one that stays on due to its weight.

A pressure cooker has the lid screwed on tight. A small opening with A = 0.0075 in^2 is covered with a petcock that can be lifted

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A pressure cooker has the lid screwed on tight. A small opening with A = 0.0075 in^2 is covered with a petcock that can be lifted

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1 Answer

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