Answer:
a) 2.32 × 10⁶ pa.
b) [tex]P_g = 22.19 \times 10^5 Pa[/tex]
Explanation:
Pressure cooker increase speed of cooking by boiling of water at higher temperature .
a) to raise the boiling point to 220°C the pressure should equal to
2.32 × 10⁶ pa.
the value of pressure is found out from the table of temperature, vapor pressure ans saturation vapor density.
b) gauge pressure is calculated by subtracting absolute pressure from the atmospheric pressure.
atmospheric pressure = 1.01 × 10⁵ pa
gauge pressure = absolute pressure - atmospheric pressure
[tex]P_g = P - P_{atm}[/tex]
[tex]P_g = 23.2 \times 10^5 - 1.01 \times 10^5[/tex]
[tex]P_g = 22.19 \times 10^5 Pa[/tex]
