Thermometer stem correction with pressure

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SUMMARY

The discussion centers on the need to correct thermometer readings based on ambient pressure conditions. Specifically, a temperature reading of 155.2°C must be adjusted due to the laboratory pressure being 742.1 mmHg instead of the standard 760 mmHg. The correction process involves understanding the relationship between temperature and pressure, particularly in thermodynamic contexts. Participants emphasize the importance of using the correct formulas and reference materials to achieve accurate results.

PREREQUISITES
  • Understanding of thermodynamic principles
  • Familiarity with pressure measurement units (mmHg)
  • Knowledge of temperature correction formulas
  • Experience with laboratory equipment and procedures
NEXT STEPS
  • Research the formula for temperature correction based on pressure variations
  • Learn about the ideal gas law and its implications for thermometer readings
  • Study the impact of altitude on atmospheric pressure and temperature measurements
  • Review laboratory best practices for accurate temperature and pressure readings
USEFUL FOR

Students in physics or engineering courses, laboratory technicians, and anyone involved in experimental thermodynamics who needs to understand the impact of pressure on temperature readings.

AlexLM
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Hi everyone,

So I'm a bit stuck in my physics lab report. I have to make a correction to the temperature read in the laboratory (ex:155.2C) because our room pressure was 742.1mmHg and not 760mmHg I'm guessing. I've tried researching this for a while now but I can't seem to find an easy answer or remember what to do. They didn't explain it in the lab and told us to refer to the book, ends up there was a mistake in the printing and we're missing a bunch of chapters including the one explaining this concept.

Any help would be greatly appreciated!
Cheers!
 
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More information would not hurt. Maybe a description of the thermometer or picture. Maybe a scan of the lab procedure.
 

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