- #1
Micko
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Homework Statement
I'm trying to figure out if and how pressure in the closed pot, half full of water is going to change if pot is placed on the cooker and continuously heated.
Homework Equations
p*V=R*T for ideal gas
The Attempt at a Solution
I think the following will occur:
First there would be an increase in water temperature until boiling point 100C (I'm assuming outside pressure is 1 atm). After water starts boiling temperature will not change until all water vaporize. Also during heating water will slightly exapand, but pressure inside the closed pot will reamain the same.
Now, after all water is turned to vapor, further heating will cause temperature to start rising (superheated vapor). Vapor will expand and pressure is still the same. But since pot is closed further adding of heat will cause pressure inside the pot to start rising (pot's volume is constant)?
Am I right here?
Can you explain me at which point pressure inside the pot will start rising?
Thank you in advanced