# The density of a substance_______as the temperature increases.

• Cute-Bunny
In summary, The density of a substance will change as the temperature increases, with the size getting larger and the mass decreasing. However, there are exceptions to this rule, as the amount of matter in a substance remains constant regardless of temperature changes.
Cute-Bunny
The density of a substance___________as the temperature increases.

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

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

chemisttree said:

decreases

chemisttree said:

Cute-Bunny said:
decreases

No.
Mass represents the amount of matter you have.
Changing the temperature won't change that amount.

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.

## 1. How does the density of a substance change as temperature increases?

As temperature increases, the density of a substance typically decreases. This is because as temperature increases, the particles within the substance gain more energy and begin to move faster. This increased movement leads to a decrease in the density of the substance.

## 2. What factors can affect the change in density as temperature increases?

The change in density of a substance as temperature increases can be affected by several factors, such as the type of substance, the pressure, and the temperature range. Certain substances may have unique properties that cause them to have a different relationship between density and temperature.

## 3. Is there a specific equation or formula to determine the change in density as temperature increases?

Yes, the equation for calculating the change in density as temperature increases is known as the coefficient of thermal expansion. It takes into account the original density of the substance, the change in temperature, and the coefficient of thermal expansion for that substance.

## 4. Can the density of a substance increase as temperature increases?

Although it is less common, there are some substances that can actually increase in density as temperature increases. This is typically due to a change in the molecular structure of the substance at higher temperatures, causing it to become more tightly packed and therefore increase in density.

## 5. How does the density of a substance at room temperature compare to its density at higher temperatures?

The density of a substance at room temperature can vary greatly from its density at higher temperatures. Some substances may have a small change in density, while others may have a significant change. It ultimately depends on the specific properties of the substance and how it reacts to changes in temperature.

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