As the air bubble increases in volume, its mass remains constant. Because the mass remains constant but volume increases, density will decrease.
The answer depends on what happens to other characteristics: particularly density or volume
it decreases.
In almost all cases, the matter expands. Density = mass / volume. When volume increases, the density decreases, because the mass is fixed.
Actually it's not weight we are dealing with here, it is actually density. So what happens is when temperature increases, the density decreases and volume increases or vice versa if the temperature decreases, the density increases and the volume decreases.
Density is equal to M/V. So, if the volume of the chocolate bar increases, the density decreases, and if the volume of the chocolate bar decreases, the density increases. This is called an inverse relation.
the density increases
If volume increases while mass remains the same, the density will decrease.
Density = mass / volume. Therefore, if volume increases and mass doesn't change, density will obviously decrease.
When mass increases and volume stays constant, the density increases. When volume increases and mass stays constant the density decreases. When they both change, then the density will depend on the rate of change of mass and the rate of change of volume.
The answer depends on what happens to other characteristics: particularly density or volume
must decrease
it decreases.
Density is a characteristic of a given material. Water, for example, has a certain density (which is somewhat dependent upon temperature but let's say that the temperature is constant). It does not matter how much water you have, it will all have the same density. One teaspoon has much less mass, but the same density as an entire ocean.
at constant temperature in a closedcontainer the increase in temperature increases the volume of a gas but not the mass.
In almost all cases, the matter expands. Density = mass / volume. When volume increases, the density decreases, because the mass is fixed.
Actually it's not weight we are dealing with here, it is actually density. So what happens is when temperature increases, the density decreases and volume increases or vice versa if the temperature decreases, the density increases and the volume decreases.
Since density ( p or rho) is m/Vas V increases density decreases.