A constant-volume gas thermometer is at 55 -kPa pressure at the triple point of water. By how mu

step 1 This question was asking us how much does the pressure change for each carbon temperature change

A constant-volume gas thermometer is at 55 -kPa pressure at...

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Key Concepts

Triple Point of Water

The triple point of water is a fixed thermodynamic state where water exists simultaneously as a solid, liquid, and gas, and it is used as a standard reference point, precisely defined as 273.16 K. This reference point enables consistent calibration of thermometers, thereby providing a reliable basis for establishing temperature scales.

Constant-Volume Gas Thermometer

A constant-volume gas thermometer uses a contained gas kept at a fixed volume to measure temperature. Because the volume does not change, the pressure inside the container is directly proportional to the absolute temperature, in accordance with the ideal gas law, making it a straightforward instrument for detecting temperature differences based solely on changes in pressure.

Ideal Gas Law and Temperature Proportionality

The ideal gas law states that PV = nRT, and when the volume is constant, the pressure is directly related to the absolute temperature (measured in Kelvin). This means that any change in temperature results in a proportional change in pressure, establishing a linear relationship that is exploited in gas thermometry for accurate temperature measurement.

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