# Can h2o be treated as an ideal gas?

### Can h2o be treated as an ideal gas?

Yes, water vapor can be treated as ideal gas.

### When can you not use the ideal gas law?

The ideal gas law fails at low temperature and high-pressure because the volume occupied by the gas is quite small, so the inter-molecular distance between the molecules decreases. And hence, an attractive force can be observed between them.

### What can the ideal gas law be used for?

The ideal gas law can be used in stoichiometry problems in which chemical reactions involve gases. Standard temperature and pressure (STP) are a useful set of benchmark conditions to compare other properties of gases. ... The ideal gas law can be used to determine densities of gases.

### When can water be approximated as an ideal gas?

If the compressibility factor z is close to 1.0 according to the universal graph, the behavior is approximately ideal gas. As a rule of thumb, if the vapor pressure is less than about 10 bars, the ideal gas law will give a pretty good approximation.

### Why can water vapor 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 (

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

Yes, the water vapor in the air can be treated as an ideal gas because of its very low partial pressure.

### Can an ideal gas condense?

Since the particles of an ideal gas have no volume, a gas should be able to be condensed to a volume of zero. ... As kinetic energy decreases as a gas is cooled, the particles will eventually move slowly enough that there attractive forces cause them to condense.

### When using the ideal gas law which of the following rules must be obeyed?

For the ideal gas law to hold, the temperature, pressure, and volume must be measured relative to the true zero points: absolute zero pressure, absolute zero temperature, and zero volume.

### Why is the ideal gas law useful to modern technicians?

For high-precision work, more complicated equations of state have been developed for particular gases, especially for working at high pressures, but the ideal gas law provides an easy way to make good estimates for any gas with relatively small errors in most cases.

### What is the ideal gas law and how is it useful to scientists?

The ideal gas law is a valuable tool in understanding state relationships in gaseous systems. For example, in a system of constant temperature and pressure, the addition of more gas molecules results in increased volume.

### Which is the ideal gas law for water?

• For example, pure water has Pc = 217 atm and Tc = 647 K. Pure water vapor at 1 atm and 373 K has Pr = = 0.0046, so the ideal gas law applies to within 10% error. Pure water vapor at 25 atm and 498 K has Pr = 0.12 and Tr = 0.77, and 0.77 ≯ 1.819 − 0.3546 0.120.6 Thus the ideal gas law is no longer a good approximation.

### How is humid air related to the ideal gas law?

• Humid Air and the Ideal Gas Law. Pressure, temperature and volume for an ideal or perfect gas like air with water vapor - or moist air. Sponsored Links. In a perfect or ideal gas the correlations between pressure, volume, temperature and quantity of gas can be expressed by the Ideal Gas Law.

### Is the universal gas constant the same for all perfect gases?

• In a perfect or ideal gas the correlations between pressure, volume, temperature and quantity of gas can be expressed by the Ideal Gas Law. The Universal Gas Constant, Ru is independent of the particular gas and is the same for all "perfect" gases, and is included in of The Ideal Gas Law:

### How is the ideal gas law expressed at STP?

• One mole of an ideal gas at STP occupies 22.4 liters. The Ideal Gas Law express the relation between pressure, temperature and volume in an ideal or perfect gas. The Ideal Gas Law can be expressed with the Individual Gas Constant as