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Enthalpy

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10y ago
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A heat change at constant pressure is called enthalpy change, often denoted as ΔH. It represents the change in total heat content of a system during a process occurring at constant pressure.

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What happens to the pressure of a confined gas at a constant temperature when the volume is reduced by half?

When the volume of a confined gas is reduced by half at a constant temperature, the pressure of the gas will double according to Boyle's Law. This is because the product of pressure and volume is constant for a given amount of gas at constant temperature. When the volume decreases, the pressure increases to maintain this equilibrium.


What does Boyle's Law state?

Boyle's Law states that the pressure of a gas is inversely proportional to its volume, when the temperature is kept constant. In other words, as the volume of a gas decreases, its pressure increases, and vice versa.


The volume of a given mass of an ideal gas at constant pressure is?

directly proportional to its temperature. This relationship is known as Charles's Law.


The relationship between the pressure and volume of gases is given by what law?

The relationship between the pressure and volume of gases is given by Boyle's Law. This law states that at constant temperature, the pressure of a gas is inversely proportional to its volume. In other words, as the volume of a gas decreases, its pressure increases, and vice versa.


According to Charles law the volume of a given amount of gas is proportional to temperature when?

the pressure is constant. This means that as the temperature of a gas increases, its volume will also increase proportionally. Conversely, when the temperature decreases, the volume will decrease accordingly, as long as the pressure remains constant.

Related questions

Do not have definite?

Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.


Gases do not have definite?

Gases are highly compressible. So they don't have definite volume and pressure. As volume is reduced for a given mass pressure increases. Also as temperature changes then at constant volume pressure changes considerably. Same way for a constant pressure temperature change brings a change in the volume. Moreover gasses do not have a free surface.


According to Charles's law for a fixed quantity of gas at constant pressure which of the given quantities is constant?

In Charles' Law, the mass is held constant which means that the pressure on the gas is constant.


Does pure liquid boils at fixed temperature at a given pressure?

Yes, a pure liquid will generally boil at a fixed temperature at a given pressure. This temperature is known as the boiling point, and it remains constant as long as the pressure is constant.


What change with the Henry law?

The formulation of Henry law is:"At constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid".


How is pressure affected when the area is doubled and the force is constant?

Pressure is inversely proportional to area when force is constant, so if the area is doubled, the pressure is halved. This is due to pressure being the force applied over a given surface area.


What happens to the pressure of a confined gas at a constant temperature when the volume is reduced by half?

When the volume of a confined gas is reduced by half at a constant temperature, the pressure of the gas will double according to Boyle's Law. This is because the product of pressure and volume is constant for a given amount of gas at constant temperature. When the volume decreases, the pressure increases to maintain this equilibrium.


At constant pressure if the temperature of a given amount of gas increases then the volume must do what?

increase


How is the change in pressure measured across a given distance define?

The change in pressure across a given distance is measured using the pressure gradient, which is the change in pressure divided by the distance. This value can be used to quantify how quickly pressure changes over a specific length or depth in a fluid.


What happens when a given amount of gas at a constant temperature increases in volume?

In this case the pressure decrease.


What happens when a given amount of gas at a constant temperature increases volume?

In this case the pressure decrease.


What does Boyle's Law state?

Boyle's Law states that the pressure of a gas is inversely proportional to its volume, when the temperature is kept constant. In other words, as the volume of a gas decreases, its pressure increases, and vice versa.