Pressure cookers increase cooking speed by raising the boiling temperature of water Temperature (C) Vapor pressure...

 

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Pressure cookers increase cooking speed by raising the boiling temperature of water Temperature (C) Vapor pressure (Pa) Saturation vapor above its value at atmospheric pressure. density (g/m) 60 1.99 x 10' 130 70 3.12 x 10' 197 80 4.73 x 10' 294 90 7.01 x 10' 418 95 8.59 x 10' 505 100 1.01 x 10' 598 120 1.99 x 10' 1095 150 4.76 x 10' 2430 200 1.55 x 10% 7090 220 2.32 x 10 10200 50% Part (a) What pressure, in pascals, is necessary to raise the boiling point to 120C? P=1.99 10(5) P = 1.990 10 Pa Correct! 50% Part (b) What gauge pressure, in atmospheres, does this correspond to? Pg = 1 atm Pressure cookers increase cooking speed by raising the boiling temperature of water Temperature (C) Vapor pressure (Pa) Saturation vapor above its value at atmospheric pressure. density (g/m) 60 1.99 x 10' 130 70 3.12 x 10' 197 80 4.73 x 10' 294 90 7.01 x 10' 418 95 8.59 x 10' 505 100 1.01 x 10' 598 120 1.99 x 10' 1095 150 4.76 x 10' 2430 200 1.55 x 10% 7090 220 2.32 x 10 10200 50% Part (a) What pressure, in pascals, is necessary to raise the boiling point to 120C? P=1.99 10(5) P = 1.990 10 Pa Correct! 50% Part (b) What gauge pressure, in atmospheres, does this correspond to? Pg = 1 atm