II have two questions In a pressure cooker, the pressure is twice the air pressu
ID: 1273784 • Letter: I
Question
II have two questions
In a pressure cooker, the pressure is twice the air pressure, water boils at approximately 120 degrees. Compared with the density of steam at 101325 Pa and at 100 degrees, the density of the steam will be :
- 2 times the normal density
- more than 2 times
-less than two times
-4 times.
If the safety protection of the pressure cooker does not work:
- T en P stay increasing
- P stays constant, because the water boils
-P keeps increasing, T is constant
-density of steam is less
I think that the first answer is 2 times the normal density and the second answer is that P en T keeps increasing!
can someone help me and give me so explanation?
Explanation / Answer
1)
PM = dRT
P is prooportional to the density , d
The pressure is twice and so will be the Density.
So,
Ans is 2 times the normal density
2)
If the safety protection of the pressure cooker does not work :
The temperature, T keeps on increasing and so is the pressure , P.
So; Ans is T & P keep on increasing.