12. ... When the bulb of a constant-volume gas thermometer is placed in a beaker of boiling water at 100 °C, the pressure of the gas is 227 mmHg. When the bulb is moved to an ice-salt mixture, the pres- sure of the gas drops to 162 mmHg. Assuming ideal behavior, as in Figure 16-3, what is the Celsius temperature of the ice-salt mixture?

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16-3
THERMAL EXPANSION
Most, though not all, substances expand when heated.
Linear Expansion
When an object of length Lo is heated by the amount AT, its length increases by AL:
16-4
AL = aLAT
The constant a is the coefficient of linear expansion (Table 16-1).
Lo
Lo
AT
AL
Transcribed Image Text:16-3 THERMAL EXPANSION Most, though not all, substances expand when heated. Linear Expansion When an object of length Lo is heated by the amount AT, its length increases by AL: 16-4 AL = aLAT The constant a is the coefficient of linear expansion (Table 16-1). Lo Lo AT AL
12. ...
When the bulb of a constant-volume gas thermometer is placed
in beaker of boiling water at 100 °C, the pressure of the gas is
227 mmHg. When the bulb is moved to an ice-salt mixture, the pres-
sure of the gas drops to 162 mmHg. Assuming ideal behavior, as in
Figure 16-3, what is the Celsius temperature of the ice-salt mixture?
Transcribed Image Text:12. ... When the bulb of a constant-volume gas thermometer is placed in beaker of boiling water at 100 °C, the pressure of the gas is 227 mmHg. When the bulb is moved to an ice-salt mixture, the pres- sure of the gas drops to 162 mmHg. Assuming ideal behavior, as in Figure 16-3, what is the Celsius temperature of the ice-salt mixture?
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