RELATION BETWEEN PRESSURE

AND BOILING POINT

BY: JOHNS JOSEPH

WHAT IS THE BOILING POINT OF WATER ?

WE ALL HAVE A COMMON ANSWER

BUT IT IS 100 DEGREES CELSIUS AT

1 ATMOSPHERE PRESSURE

AS THE PRESSURE CHANGES THE BOILING POINT WILL ALSO

CHANGE

WATER BOILS AT 76OC ON MT. EVEREST AT 0.333 ATMOSPHERE

PRESSURE

AS THE PRESSURE DECREASES THE BOILING POINT WILL ALSO DECRESASES

FOR PROPER COOKING PROPER TEMPERATURE IS

REQUIRED

THE PRESSURE COOKER WAS

INVENTED BECOUSE OF THIS REASON

• PRESSURE COOKER WORKS BY KEEPING THE VOLUME CONSTANT AND

INCREASING THE PRESSURE

• AS THE PRESSURE RISES, THE TEMPERATURE OF THE WATER AND STEAM

INSIDE THE PRESSURE COOKER ALSO RISES ABOVE THE NORMAL 100ºC

(212ºF) BOILING POINT TEMPERATURE.

• HIGHER THE PRESSURE, THE SHORTER THE COOKING TIME.

THANKYOU

Prepared BY:JOHNS JOSEPH