A sample of gas has a volume of 2.09 L at a temperature of 49.90 °C. The gas sample is cooled to a temperature of -33.80 °C (assume pressure and amount of gas are held constant). Predict whether the new volume is greater or less than the original volume, and calculate the new volume. New volume larger or smaller? New volume =
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.
![**Charles's Law and Volume Calculation**
**Objective:**
Use Charles's law to calculate the volume of a gas sample after a change in temperature.
**Problem Statement:**
A sample of gas has a volume of 2.09 L at a temperature of 49.90 °C. The gas sample is then cooled to a temperature of -33.80 °C. Assume that the pressure and the amount of gas remain constant.
1. Predict whether the new volume is greater or less than the original volume.
2. Calculate the new volume.
**Question to Consider:**
Is the new volume larger or smaller? [_]
**Calculation Section:**
New volume = [_] L](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4126b89b-6ee3-437f-8fcf-aa0e90855818%2F3f1c9d34-29d4-47b1-a895-a787467ae927%2Ffgygbde_processed.jpeg&w=3840&q=75)
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