Charles’ Law and Gay-Lussac’s Law
Relationship Between Pressure, Temperature, and Volume
The relationships between temperature and volume is directly proportional. This means that volume expands as temperature rises. A drop in temperature can also mean a drop in volume. In the 18th century, scientists discovered that relationships between pressure, volume, and temperature were constant across types of gas. These early laws gave rise to the combined gas laws and the ideal gas laws.
Charles’s Law
Charles’ Law shows a direct relationship between the volume of a gas and the temperature of the gas. As with most things, as the temperature of a gas increases so does the volume. This law is shown as:
Keep in mind that this scientific relationship only works for the same gas at two diverse temperatures and volumes. It does not show any relationship between two unlike gases, and the pressure is held constant so it is not considered.
Boyle’s Law
In the mid 1600's, Robert Boyle studied the relationship between the pressure p and the volume V of a confined gas held at a constant temperature. Boyle observed that the product of the pressure and volume are observed to be nearly constant. The product of pressure and volume is exactly a constant for an ideal gas.
This relationship between pressure and volume is called Boyle’s Law in his honor.
Gay-Lussac’s Law
The French chemist Joseph Gay-Lussac discovered the relationship between the pressure of a gas and its absolute temperature. Gay-Lussac’s law states that the pressure of a given mass of gas varies directly with the absolute temperature of the gas, when the volume is kept constant.
The mathematical expressions for Gay-Lussac’s law are likewise similar to those of Charles’s law.
The relationships between temperature and volume is directly proportional. This means that volume expands as temperature rises. A drop in temperature can also mean a drop in volume. In the 18th century, scientists discovered that relationships between pressure, volume, and temperature were constant across types of gas. These early laws gave rise to the combined gas laws and the ideal gas laws.
Charles’s Law
Charles’ Law shows a direct relationship between the volume of a gas and the temperature of the gas. As with most things, as the temperature of a gas increases so does the volume. This law is shown as:
Keep in mind that this scientific relationship only works for the same gas at two diverse temperatures and volumes. It does not show any relationship between two unlike gases, and the pressure is held constant so it is not considered.
Boyle’s Law
In the mid 1600's, Robert Boyle studied the relationship between the pressure p and the volume V of a confined gas held at a constant temperature. Boyle observed that the product of the pressure and volume are observed to be nearly constant. The product of pressure and volume is exactly a constant for an ideal gas.
This relationship between pressure and volume is called Boyle’s Law in his honor.
Gay-Lussac’s Law
The French chemist Joseph Gay-Lussac discovered the relationship between the pressure of a gas and its absolute temperature. Gay-Lussac’s law states that the pressure of a given mass of gas varies directly with the absolute temperature of the gas, when the volume is kept constant.
The mathematical expressions for Gay-Lussac’s law are likewise similar to those of Charles’s law.