What the heck is isometric heating?

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Discussion Overview

The discussion revolves around the concept of isometric heating, exploring its definition and implications in thermodynamics. Participants examine the relationship between volume, pressure, and temperature in different heating scenarios, including isochoric and isobaric heating.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants propose that isometric refers to a constant volume during heating.
  • Others argue that heating typically causes volume changes due to molecular vibrations, which affect density.
  • A participant notes that in a rigid tank, the volume remains constant while pressure increases when heated, referencing Charles' Law.
  • One participant suggests that "isochore heating" is the more familiar term for constant volume heating, while discussing the etymology of "isometric."
  • Another participant expresses confusion, indicating they were actually interested in isobaric heating, which involves constant pressure and volume changes during heating.
  • It is mentioned that isobaric heating applies to both gases and solids, with a focus on how solids can expand while maintaining constant pressure.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the definitions and implications of isometric versus isochoric and isobaric heating, with no consensus reached on the terminology or concepts involved.

Contextual Notes

There are unresolved assumptions regarding the definitions of isometric and isochoric heating, as well as the implications of heating in rigid versus flexible containers.

Mk
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What the heck is isometric heating?
 
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Isometric just means that the volume doesn't change.
 
When you heat something, the volume always changes, the vibrating molecules, thus changing the density.
 
Not necessarily. If a gas is contained in a rigid tank its volume can't change. Heating will cause the pressure to increase instead.
 
The more familiar term is:"isochore heating".It specifies it requires constant volume.While "isometric" can mean the same thing,bu u neet to analyze its origin:"isos"(Ancient Greek):the same;"metric<metron"(Ancient Greek)=to measure.

Daniel.
 
HallsofIvy said:
If a gas is contained in a rigid tank its volume can't change. Heating will cause the pressure to increase instead.

Charles' Law.
Something you learn very early in Scuba class...
Don't store your tanks in the sun.
 
Ooops... I just found out I wanted to know what isobaric heating is, sorry.
 
Mk said:
Ooops... I just found out I wanted to know what isobaric heating is, sorry.

Well,that's something else.It assumes that a gas (actually works with a solid as well) is heated (its temperature is rising) and it dilatates at the same time,while the pressure is kept constant.For a solid it works wonderfully.

Isos-the same;baros-pressure.

Daniel.
 
Isobaric means that the pressure is constant. When it's beeing heatet the volume changes. An exampel of this is a heath resorver with a movable cylinder, hich is being haetet.
 

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