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University Physics III

University Physics III · Temperature and Kinetic Theory · 6.01

Temperature, thermal equilibrium, and thermometry

Thermal contact and equilibrium, the zeroth law that makes a thermometer meaningful, thermometric properties, Celsius and kelvin, and constant-volume extrapolation to absolute zero; an empirical scale is only as linear as its working substance.

Course-map guide · not a complete lesson or simulation

Scope & orientation

What this subsection covers

Thermal contact and equilibrium, the zeroth law that makes a thermometer meaningful, thermometric properties, Celsius and kelvin, and constant-volume extrapolation to absolute zero; an empirical scale is only as linear as its working substance.

A strong response uses p-v and p-t state diagrams and states where the model stops being reliable.

Reasoning checklist

Evidence, assumptions and limits

01

Assumptions to state

State the system, observable, approximation, and conditions held fixed before using a model.

02

Evidence to collect

What absolute-zero intercept and uncertainty do constant-volume pressure-temperature data support?

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What absolute-zero intercept and uncertainty do constant-volume pressure-temperature data support? Useful evidence includes pressure-temperature pairs, a linear fit with residuals, the extrapolated intercept, propagated uncertainty, and a dead-volume systematic check.

03

Limits to state

This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus.

Read the complete note

This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus. Third-semester content is the least standardised of the introductory sequence: departments place oscillations, waves, optics, and thermal physics differently, and the modern-physics units here are a bounded survey rather than a complete course in relativity, quantum mechanics, atomic, nuclear, or particle physics. Follow your institution's published scope, notation, laboratory programme, and assessment rules. A result should be checked against units, signs, limiting cases, and the conditions under which its model was derived.

Diagram & examples

Work the claim before choosing an equation

Interactive concept map

Follow the model from claim to evidence.

01 · Physical claimTemperature, thermal equilibrium, and thermometry

Thermal contact and equilibrium, the zeroth law that makes a thermometer meaningful, thermometric properties, Celsius and kelvin, and constant-volume extrapolation to absolute zero; an empirical scale is only as linear as its working substance.

02 · RepresentationThe subsection's claim

Model, evidence, and boundary

03 · TestPrediction before measurement

When should a model used for Temperature, thermal equilibrium, and thermometry be revised?

04 · Evidence & boundaryDecide, then qualify

What absolute-zero intercept and uncertainty do constant-volume pressure-temperature data support?

Read the complete note

What absolute-zero intercept and uncertainty do constant-volume pressure-temperature data support? Useful evidence includes pressure-temperature pairs, a linear fit with residuals, the extrapolated intercept, propagated uncertainty, and a dead-volume systematic check.

Interactive diagram for Temperature, thermal equilibrium, and thermometry: follow the physical claim through its representation, proposed test, evidence, and model boundary.

modelModel, evidence, and boundary turns the stated idea into a representation that can make a prediction.

Example questions

Try the reasoning before revealing the structure.

Diagram check

When should a model used for Temperature, thermal equilibrium, and thermometry be revised?

Quick check

Test the reasoning, not recall

When should a model used for Temperature, thermal equilibrium, and thermometry be revised?

Choose an answer to test the model.