The density of a substance_______as the temperature increases.

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Discussion Overview

The discussion revolves around the relationship between the density of a substance and temperature changes. Participants explore whether density increases or decreases as temperature rises, considering the implications for mass and size of the substance.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that density may increase or decrease with temperature changes, but they express uncertainty about which is correct.
  • One participant proposes that the answer to the initial question is "42," though this is not substantiated with reasoning.
  • Questions are raised about the effects of temperature on mass and size, with some participants asserting that size increases when heated.
  • Another participant argues that mass does not change with temperature, stating that mass represents the amount of matter present.
  • There is a suggestion that if density increases, the fixed mass of a substance contracts, but this is noted to have important exceptions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on how density changes with temperature, and multiple competing views remain regarding the relationship between density, mass, and size.

Contextual Notes

There are unresolved assumptions regarding the definitions of density, mass, and size, as well as the conditions under which these relationships may hold true.

Cute-Bunny
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The density of a substance___________as the temperature increases.
 
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I believe the answer is 42.
 
chemisttree said:
I believe the answer is 42.

are you sure, i don't think so! I am not sure if its increases or decreases
 
When temperature increases what happens to mass? What happens to size?
 
chemisttree said:
When temperature increases what happens to mass? What happens to size?

increases :confused:
 
Stuff gets heavier when heated or size gets larger when heated?
 
chemisttree said:
Stuff gets heavier when heated or size gets larger when heated?

Size gets larger when heated
 
What about mass?
 
chemisttree said:
What about mass?

decreases
 
  • #10
chemisttree said:
What about mass?

Cute-Bunny said:
decreases

No.
Mass represents the amount of matter you have.
Changing the temperature won't change that amount.
 
  • #11
If the density increases the (fixed mass) of substance contracts, right? If density decreases...

Put like that you probably know a rule, backed up by some direct experience.

But it is a rule with important exceptions.
 

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