Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
![**Chemistry Problem on Volume of Gas at STP**
**Question:** At STP, 22.00 mol of gas occupies approximately what volume in liters?
**Details:**
- **Question Number:** 37 out of 48
- The layout of the question is straightforward without any additional context apart from the problem.
**Explanation:**
- STP stands for Standard Temperature and Pressure, which is defined as 0 degrees Celsius (273.15 K) and 1 atm pressure.
- It is known that 1 mole of an ideal gas occupies 22.4 liters at STP.
**To find the volume occupied by 22.00 mol of gas:**
\[
Volume = \text{Number of moles} \times \text{Volume of 1 mole at STP} \\
Volume = 22.00 \, \text{mol} \times 22.4 \, \text{L/mol} \\
Volume \approx 492.8 \, \text{L}
\]
- Typically, the volume is calculated using the ideal gas law, but at STP this relation holds true directly for ideal gases.
**Provided Tools:**
- A basic numeric keypad for entering the calculated volume in liters.
This question tests the understanding of gas laws and STP conditions, essential in fundamental chemistry education. The numeric keypad facilitates direct input, maintaining the simplicity of the problem-solving interface.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20214f54-b261-4746-a2af-8e52bbd8e109%2F6fe8adbf-f61e-4783-96a7-cdb8a23ae279%2Fexbrrzo_processed.jpeg&w=3840&q=75)
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