Can you use ideal gas law for saturated vapor?

Can you use ideal gas law for saturated vapor?

The ideal gas law strictly applies only to ideal gases, which do not condense to form a liquid. This means that there is no vapor pressure associated with ideal gases, which are used to represent real gases that are at a temperature that is very much higher than their condensation temperature.

Is ideal gas equation applicable in saturated region?

Clearly, the ideal gas approximation does not work well for the majority of the saturated vapor line, as we would expect. However, the second figure shows that at low enough pressures, the ideal gas approximation is reasonably accurate, even on the saturated vapor line.

Can you treat superheated steam as an ideal gas?

Superheated means the vapour is above the vaporisation temperature at a given pressure. You need to tell more than that to know if a gas can be assumed ideal or not. If the vapour is water under atmospheric pressure and something between 100ºC and 1000ºC then it can be fairly assumed as an ideal gas.

Is vapour an ideal gas?

Yes but below 10KPa. And favourable conditions are high temp and low pressure. Usually gases which are normally exist like O2, N2 are treated as ideal gas. Irrespective and regardless of temperature, If the pressure are very low( lower than 10KPa), water vapour starts behaving as ideal gas.

Can you treat steam as an ideal gas?

Yes , The superheated steam can be considered as ideal gas . All the gas laws and also ideal gas equation can be applied in superheated steam .

When can steam be treated as an ideal gas?

a) Humidity and the Adiabatic Saturation Process Notice also from the h-s diagram for steam that at relatively low temperatures (<60°C) the water vapor in the air has a constant enthalpy at constant temperature from saturated vapor through the superheated region, thus can be treated as an ideal gas.

Can we treat steam as an ideal gas?

No. Saturated steam ( That is steam with a title of 1) cannot be considered as an ideal gas at all. Ideal gas model is “not so precise” with water vapor properties as entropy and enthalphy; and gives us a 《BIG》 error; at least a huge difference meaningful for engineering and a scientific approach.

How a saturated gas behaves differently from an ideal gas?

The behaviour of an ideal gas is that molecules have no attraction for one another. Therefore, saturated gases do not follow the ideal gas laws, because, saturated gas behaviour is different from the ideal gas, this is because gas can change its state at saturation point.

Can the water vapor in air be treated as an ideal gas?

Yes, water vapor can be treated as ideal gas.

Which of the following can be treated as an ideal gas?

For a gas to be “ideal” there are four governing assumptions: The gas particles have negligible volume. The gas particles are equally sized and do not have intermolecular forces (attraction or repulsion) with other gas particles. The gas particles move randomly in agreement with Newton’s Laws of Motion.

Can water vapor be treated as an ideal gas discuss briefly 5?

Can water be considered ideal gas?

At standard temperatures and pressures, the standard state of water is as a liquid. At elevated temperatures, and low pressures, water can be gaseous; in fact, water always has a vapour pressure. The answer to your question is thus NO.

Do you apply the ideal gas law to saturated steam?

Do not apply the ideal gas law to saturated steam. The concept is still valid, temperature goes up with pressure etc, but the values will be wrong. This is why every thermo book has steam tables in the back. No!!!

Why is steam treated as an ideal gas?

Notice also from the h-s diagram for steam that at relatively low temperatures (<60°C) the water vapor in the air has a constant enthalpy at constant temperature from saturated vapor through the superheated region, thus can be treated as an ideal gas.

Is steam an ideal gas at 10000k?

Steam is not an ideal gas. Do not assume it. Even at 10,000K, don’t use the ideal gas law.” Do not apply the ideal gas law to saturated steam. The concept is still valid, temperature goes up with pressure etc, but the values will be wrong. This is why every thermo book has steam tables in the back.

What is the difference between ideal gas law and saturated vapor pressure?

So far i understand that the ideal gas law tells us how much pressure an amount of gas exerts on the walls of a container. I also understand that the saturated vapor pressure is the pressure applied on the container from a substance in liquid/vapor equilibrium. What i dont get is whether these two concepts are related.