Pressure cookers increase cooking speed by raising the boiling temperature of water above its value at atmospheric pressure. (a)  What pressure, in pascals, is necessary to raise the boiling point to 125°C? You can use the table above and assume that the vapor pressure depends linearly on the temperature between the existing data points.  (b)  What gauge pressure, in atmospheres, does this correspond to?

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Chapter16: Temperature And The Kinetic Theory Of Gases
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Pressure cookers increase cooking speed by raising the boiling temperature of water above its value at atmospheric pressure.

(a)  What pressure, in pascals, is necessary to raise the boiling point to 125°C? You can use the table above and assume that the vapor pressure depends linearly on the temperature between the existing data points. 

(b)  What gauge pressure, in atmospheres, does this correspond to? 

Temperature ("C)|Vapor pressure (Pa) Saturation vapor
density (g/m³)
60
1.99 x 10
130
70
3.12 x 10*
197
80
4.73 x 104
294
90
7.01 x 10*
418
95
8.59 x 104
1.01 x 10
505
100
598
120
1.99 x 105
1095
150
4.76 x 10
2430
200
1.55 x 10°
7090
220
2.32 x 10
10200
Transcribed Image Text:Temperature ("C)|Vapor pressure (Pa) Saturation vapor density (g/m³) 60 1.99 x 10 130 70 3.12 x 10* 197 80 4.73 x 104 294 90 7.01 x 10* 418 95 8.59 x 104 1.01 x 10 505 100 598 120 1.99 x 105 1095 150 4.76 x 10 2430 200 1.55 x 10° 7090 220 2.32 x 10 10200
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