How the conditions should be changed to prevent the volume of a gas from expanding when its mass is increased?

Temperature is increased and pressure is lowered.

What change in conditions would increase the volume of a fixed mass of gas?

For a fixed mass of gas at constant pressure, the volume is directly proportional to the kelvin temperature. That means, for example, that if you double the kelvin temperature from, say to 300 K to 600 K, at constant pressure, the volume of a fixed mass of the gas will double as well.

Under which conditions will the volume of a given sample of a gas decrease?

Avagadro’s Law- Gives the relationship between volume and amount of gas in moles when pressure and temperature are held constant. If the amount of gas in a container is increased, the volume increases. If the amount of gas in a container is decreased, the volume decreases.

How does the volume of the gas expand when its temperature increases?

The volume of the gas increases as the temperature increases. As temperature increases, the molecules of the gas have more kinetic energy. They strike the surface of the container with more force. If the container can expand, then the volume increases until the pressure returns to its original value.

How does decreasing the volume of a gas at constant temperature cause an increase in pressure?

Boyle’s law Because the volume has decreased, the particles will collide more frequently with the walls of the container. Each time they collide with the walls they exert a force on them. More collisions mean more force, so the pressure will increase. When the volume decreases, the pressure increases.

What changes about the particles in a gas when the temperature is increased?

As the temperature of the gas increases, the particles gain kinetic energy and their speed increases. This means that the particles hit off the sides more often and with greater force.

What will happen to the volume of a fixed mass of gas if the pressure and the Kelvin temperature are both doubled?

What happens to the volume of a fixed mass of gas when its pressure and temperature (in Kelvin) are both doubled? It will not change. The temperature in Kelvin of a 2.0 dm^3 of an ideal gas is doubled and its pressure is increased by a factor of 4.

How does the change in the temperature relate to the volume of gas in the balloon?

What do you think happens to the volume of gas inside the balloon? As the temperature increases, the gas particles absorb more heat energy. They speed up and move farther away from one another. So the increase in temperature causes an increase in volume.

Why does volume decrease when pressure increases?

Because the volume has decreased, the particles will collide more frequently with the walls of the container. Each time they collide with the walls they exert a force on them. When the volume decreases, the pressure increases. This shows that the pressure of a gas is inversely proportional to its volume.

Why does temperature decrease when volume increases?

So, an increase in volume as the independent variable will most directly cause a *decrease* in pressure. That decrease in pressure then causes a decrease in temperature. So, gases cool as they expand.

When the volume goes down what happens to its temperature?

Gas Laws

A	B
Charles’ law	States that as the volume of a gas goes up, the temperature goes up.
Charles’s law	States that as the temperature of a gas goes up, its volume goes up.
Gay-Lussac’s law	As the temperature of an enclosed gas increases, the pressure increases, if the volume is constant.

How will the temperature change if you increase the mass of the gas molecules?

In a hot gas, the molecules move faster than in a cold gas; the mass remains the same, but the kinetic energy, and hence the temperature, is greater because of the increased velocity of the molecules. We can sense that one gas is hotter than another gas and therefore has a higher temperature.