Understanding Thermodynamic Systems and Temperature - Basics and Concepts

May 17, 2025

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Learn about the fundamental concepts of temperature and thermodynamic systems. Explore how temperature is a measure of heat, the role of thermometers in measuring temperature variations, and the transfer of energy from hot to cold objects. Delve into the characteristics of systems and their components, such as isolated, closed, and open systems, along with the variables that describe them. Enhance your understanding of key properties like temperature, pressure, and volume and how changes in one variable impact others in a system.

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Understanding Thermodynamic Systems and Temperature - Basics and Concepts

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1 TUTKITTAVAA KOHDETTA KUTSUTAAN SYSTEEMIKSI
LÄMPÖ • Lämpötila on perussuure. Se kuvaa, kuinkakylmä tai kuumakohde on. • Lämpötilantunnus on T jasen SI-järjestelmänmukainenyksikkö on 1 K (kelvin). • Lämpömittareidentoimintaperustuulämpöilmiöihin, esim. lämpölaajenemiseen, sähkönkulkuun, lämpösäteilyyn… • Lämpö on kappaleidenlämpötilaerostaaiheutuvaakuumemmastakappaleestakylmempäänsiirtyvääenergiaa.
SYSTEEMI • Systeemi on tutkittavakohdejatarkastelunulkopuolellejääväosaympäristö. • Systeemivoi olla eristetty, suljettu tai avoin. • Tilanmuuttujatkuvaavatsysteemiä: - lämpötila T - paine p - tilavuus V • Tilanmuutoksessayhdentilanmuuttujanarvonmuuttaminenaiheuttaaainakinyhdenmuuntilanmuuttujanarvonmuuttumisen.