Question

He instruction booklet for your pressure cooker indicates that its highest setting is 11.1 psi . you know that standard atmospheric pressure is 14.7 psi, so the booklet must mean 11.1 psi above atmospheric pressure. at what temperature in degrees celsius will your food cook in this pressure cooker set on "high"?

Answer 1

Given that,

Atmospheric Pressure = 14.7 psi

Cooking Pressure = 14.7 +11.1 = 25.8 psi

Take, Atmospheric Temperature = 25 °C

Cooking Temperature = ??

Since, we know that Gas equation is given by:

PV = nRT

or

P ∝ T

P1 / T1 = P2 / T2

14.7/ 25 = 25.8/ T2

T2 = 25*25.8/14.7

T2 = 43.87 °C

The cooking pressure will be 43.87 °C.