Non classé

# What Is Boyle`s Law in Chemistry

Robert Boyle, sometimes called the « father of modern chemistry », worked in the fields of physics and chemistry. In 1660, Boyle published The Spring and Weight of the Air, in which he described various experiments he had conducted with a vacuum pump he had designed. Boyle`s law is a fundamental law in chemistry that describes the behavior of a gas maintained at a constant temperature. The law, discovered by Robert A. Boyle in 1662, states that at a fixed temperature, the volume of gas is inversely proportional to the pressure exerted by the gas. In other words, when a gas is pumped into an enclosed space, it shrinks to fit into that space, but the pressure the gas exerts on the container will increase. Wow, I didn`t understand this part of the chemistry class until I found this page. It was very helpful. I can`t wait to come back!!. When a diver rises rapidly from a deep area to the surface of the water, the pressure drop can cause gas molecules in their body to expand. These gas bubbles can damage the diver`s organs and lead to death. This expansion of the gas, caused by the diver`s ascent, is another example of Boyle`s Law.

Another similar example can be seen in deep-sea fish that die after reaching the surface of the water (due to the expansion of gases dissolved in their blood). The law can be derived from the kinetic theory of gases that assume a perfect (ideal) gas (see perfect gas). Real gases obey Boyles` law at sufficiently low pressures, although the pv product usually decreases slightly at higher pressures, where the gas begins to deviate from the ideal behavior. Boyle`s law is a gas law that states that the pressure and volume of a gas are inversely proportional. If the temperature is kept constant, the pressure decreases as the volume increases, and vice versa. This equation can be used to predict the increase in pressure that a gas exerts on the walls of its tank when the volume of its tank is reduced (and its quantity and absolute temperature remain unchanged). Or Boyle`s law is a gas law that states that the pressure and volume of a gas have an inverse relationship. As the volume increases, the pressure decreases and vice versa if the temperature is kept constant. In the mid-1600s, Robert Boyle studied the relationship between pressure p and volume V of a trapped gas maintained at a constant temperature. Boyle observed that the product of pressure and volume is almost constant. The product of pressure and volume is exactly a constant for an ideal gas. For a solid mass of an ideal gas maintained at a fixed temperature, pressure and volume are inversely proportional.

 Boyle`s Law can be used to explain how people breathe air and exhale. As the diaphragm expands and contracts, the volume of the lungs increases and decreases, which changes the air pressure. The pressure difference between the inside of the lungs and the outside air produces either inhalation or exhalation. The initial and final volumes and pressures of the fixed quantity of gas, the initial and final temperatures being the same (heating or cooling is necessary to satisfy this condition), are related by the equation: here P1 and V1 represent the original pressure and volume respectively, and P2 and V2 represent the second pressure and volume. You can read how one student used Boyle`s original data to verify Boyle`s law. Boyle`s Law is often used as part of an explanation of how the respiratory system works in the human body. This often involves explaining how lung volume can be increased or decreased, causing relatively lower or higher air pressure (in accordance with Boyle`s Law). This forms a pressure difference between the air in the lungs and the ambient air pressure, which in turn triggers inhalation or exhalation as the air changes from high to low pressure.  According to Boyles` law, P1V1 = P2V2 ⇒ P2 = (P1V1)/V2, where P is pressure, V is volume and k is a constant. The law can also be used to determine the pressure or volume of a system when the temperature is kept constant: the empirical relationship states that the pressure (p) of a given quantity of gas changes inversely with its volume (v) at constant temperature; that is, pv = k, a constant proposed by physicist Robert Boyle in 1662.

The pressure/s volume curve for a fixed quantity of gas maintained at a constant temperature is shown below. This proportionality can allow us to solve specific problems related to pressure and volume changes in a closed system. We can create a graph of this relationship as follows: Boyle`s law is a law of gas that states that the pressure exerted by a gas (of a certain mass, constant temperature) is inversely proportional to the volume it occupies. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and amount of gas are kept constant. Boyle`s law was proposed by the Anglo-Irish chemist Robert Boyle in 1662. Boyle`s law, Charles` law and Gay-Lussac`s law form the combined gas law. The three gas laws in combination with Avogadro`s law can be generalized by the law of perfect gases. In 1662, Boyle published the second version of The Spring and Weight of the Air. Here he describes the inverse relationship between pressure and volume, now known as Boyle`s law. Boyle`s law states that pressure and volume are inversely proportional to each other.

As the pressure increases, the volume decreases, and when the pressure decreases, the volume increases. He made these observations using mercury in a J-tube, and then took measurements of the volume of the gas at pressures both below and above normal atmospheric pressure. This expression can be derived from the pressure-volume relationship proposed by Boyle`s law. For a fixed amount of gas maintained at a constant temperature, PV = k. Therefore, Boyle`s law is important because it explains how gases behave. This proves beyond any doubt that the pressure and volume of the gas are inversely proportional. When you apply pressure to a gas, the volume decreases and the pressure increases. An example of Boyle`s Law in action can be seen in a balloon. air is blown into the balloon; The pressure of this air exerts pressure on the rubber and causes the balloon to expand. When one end of the balloon is compressed, which reduces the volume, the pressure inside increases, causing the unpressed part of the balloon to expand. However, there is a limit to the amount of air/gas that can be compressed, as the pressure eventually becomes so great that the balloon breaks.

Here`s an example of how you can solve a Boyles` law problem. Therefore, if the volume is reduced by half, the pressure doubles; And when the volume is doubled, the pressure is halved. For a gas, the relationship between volume and pressure (at constant mass and temperature) can be expressed mathematically as follows. Boyle`s law states that the pressure of an ideal gas increases as the volume of its reservoir decreases. The chemist and physicist Robert Boyle published the law in 1662. The law of gas is sometimes called Mariotte`s law or Boyle-Mariotte`s law because the French physicist Edme Mariotte independently discovered the same law in 1679. where P is the pressure exerted by the gas and V is the volume it occupies. This proportionality can be converted into an equation by adding a constant k. Boyle`s law states that at constant temperature, the volume of a given mass of a dry gas is inversely proportional to its pressure. This relationship between pressure and volume was first established by Richard Towneley and Henry Power in the 17th century.   Robert Boyle confirmed their discovery through experiments and published the results.  According to Robert Gunther and other authorities, it was Boyle`s assistant, Robert Hooke, who built the experimental apparatus.

Boyle`s law is based on experiments with air, which he considered to be a liquid of particles resting between small, invisible sources. At the time, tune was still considered one of the four elements, but Boyle disagreed. Boyle`s interest was probably to understand air as an essential element of life;  He has published work on the growth of airless plants.  Boyle used a closed J-shaped tube, and after pouring mercury on one side, he forced the air on the other side to contract under the pressure of mercury. After repeating the experiment several times and using varying amounts of mercury, he found that under controlled conditions, the pressure of a gas is inversely proportional to the volume it occupies.  The French physicist Edme Mariotte (1620-1684) discovered the same law independently of Boyle in 1679, but Boyle had already published it in 1662.  However, Mariotte discovered that the volume of air changes with temperature.  Therefore, this law is sometimes referred to as the Mariotte law or the Boyle-Mariotte law.