Keith Mack
Boyle's Law, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at a constant temperature. The law was derived from experiments conducted by Boyle and his assistant, Robert Hooke, who built the experimental apparatus. The experiments involved pouring mercury into a glass J-shaped tube, which was sealed at one end and open at the other. As they poured in mercury, the air trapped in the sealed end became increasingly compressed, and by measuring the height of the mercury, they effectively measured the pressure of the trapped air.
| Characteristics | Values |
|---|---|
| Date | 1662 |
| Discovered By | Robert Boyle |
| Other Names | Mariotte's Law |
| Relationship | Inverse relationship between pressure and volume of a gas at constant temperature |
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What You'll Learn
Boyle's law was formulated in 1662
Boyle's Law, formulated by the physicist Robert Boyle, was created in 1662. The law is based on experiments with air, which Boyle considered to be a fluid of particles at rest between small invisible springs.
Boyle's Law states that the pressure (P) and volume (V) of a gas are inversely proportional to one another if the temperature (T) is held constant. In other words, the pressure of a gas is inversely proportional to its volume at a constant temperature. This empirical relation can be imagined by trapping a sample of gas in a tube and then measuring its volume as we change the pressure.
Boyle's Law was first published in the appendix of the second edition of his book, 'New Experiments Physico-Mechanicall, Touching the Spring of the Air, and Its Effects', in 1662. The book included 43 different experiments involving air and an air pump. One such experiment involved pouring mercury into a glass J-shaped tube, which was sealed at one end and open at the other. As more mercury was poured in, the air trapped in the sealed end became increasingly compressed. By measuring the height of the mercury, Boyle was effectively measuring the pressure of the trapped air.
Boyle's Law is a gas law and was the first physical law to be expressed in the form of an equation describing the dependence of two variable quantities. It is used to predict the result of introducing a change in volume and pressure to the initial state of a fixed quantity of gas.
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Robert Boyle is known for his law of gases
Boyle's Law, formulated by the physicist Robert Boyle in 1662, shows the relationship between volume and pressure when mass and temperature are held constant. In other words, the pressure (p) of a given quantity of gas varies inversely with its volume (v) at a constant temperature. This can be expressed in equation form as pv = k, a constant.
Boyle's Law was derived from experiments with air, which he considered to be a fluid of particles at rest between small invisible springs. He used a closed J-shaped tube and poured mercury from one side, forcing the air on the other side to contract under the pressure of the mercury. Boyle was an advocate of corpuscularism, a form of atomism that was slowly displacing Aristotelian and Paracelsian views of the world.
Boyle's Law was the first physical law to be expressed in the form of an equation describing the dependence of two variable quantities. It is used to predict the result of introducing a change in volume and pressure to the initial state of a fixed quantity of gas.
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Boyle's law is based on experiments with air
Boyle's Law, formulated by the physicist Robert Boyle in 1662, is based on experiments with air. Boyle's law is a gas law that describes the relationship between pressure and volume within a confined gas. It states that the pressure exerted by a gas is inversely proportional to the volume occupied by it when the temperature and the quantity of gas remain constant.
Boyle's law can be traced back to experiments conducted by Boyle in the 17th century. Boyle considered air to be a fluid of particles at rest between small invisible springs. He used a closed J-shaped tube and poured mercury from one side, forcing the air on the other side to contract under the pressure of the mercury. This experimental setup allowed him to demonstrate the relationship between pressure and volume.
Boyle's work built upon earlier discoveries by Richard Towneley and Henry Power, who first noted the relationship between pressure and volume. Boyle's assistant, Robert Hooke, is also believed to have played a crucial role in building the experimental apparatus used in these investigations.
The law can be expressed mathematically as PV = k, where P represents pressure, V represents volume, and k is a constant for a particular temperature and amount of gas. This equation demonstrates that when the temperature and amount of gas remain constant, the product of pressure and volume is also constant.
Boyle's law has important applications, particularly in understanding the breathing system in the human body. It helps explain how lung volume changes can lead to corresponding alterations in air pressure within the lungs. Additionally, Boyle's law is often used to explain the inflation and expansion of balloons due to changes in pressure and volume.
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The law was derived from experiments with mercury
Robert Boyle formulated what became known as Boyle's law in 1662. He is best known in chemistry classrooms for this law, which states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at a constant temperature.
Boyle was a pioneer of modern chemistry and a great proponent of the experimental method. He conducted a series of experiments with air, which he considered to be a fluid of particles at rest between small invisible springs. He was interested in air as an essential element of life, publishing works on the growth of plants without air.
Boyle's law was derived from experiments with mercury. He used a closed J-shaped glass tube and poured mercury from one side, forcing the air on the other side to contract under the pressure of the mercury. The tube was nearly 2.5 meters long, and the large pressures sometimes shattered the glass. He repeated the experiment many times, with different heights of the column of mercury in the longer tube, and allowed enough time between volume measurements for the trapped air to return to room temperature.
Boyle calculated the pressure for a certain volume of gas by using simple multiplication and division, keeping the vulgar fractions. He found that if the pressure was doubled, at a constant temperature, the gas shrank to half its previous volume. If the pressure was tripled, it went to one-third the original volume, and so on.
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Boyle's law is also known as Mariotte's law in France
Boyle's Law, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at a constant temperature.
French physicist Edme Mariotte discovered the same law independently of Boyle in 1679, seven years after Boyle published his work. Mariotte also discovered that air volume changes with temperature. As a result, the law is sometimes referred to as Mariotte's Law, especially in France, to acknowledge his contributions. Some refer to it as the Boyle-Mariotte Law to acknowledge both physicists' work.
Boyle's Law, also referred to as the Boyle-Mariotte Law, outlines the inverse relationship between the pressure and volume of a gas, provided that the temperature and mass of the gas remain constant. It is a gas law, stating that the pressure and volume of a gas are inversely proportional when the temperature is held constant.
Boyle's Law is used to predict the result of introducing a change in volume and pressure to the initial state of a fixed quantity of gas. It is based on experiments with air, which Boyle considered to be a fluid of particles at rest between small invisible springs.
Boyle's Law is applied in various fields, including engineering and healthcare, to describe how gases behave under constant temperature conditions. For example, it explains the mechanics of breathing, where inhalation occurs when the diaphragm and intercostal muscles expand the lungs, reducing the internal gas pressure and causing air to flow inward.
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Frequently asked questions
Boyle's Law was created in 1662 by Robert Boyle.
No, the discovery of Boyle's Law was never stated outright in Boyle's work.
Boyle's Law is based on experiments with air, which he considered to be a fluid of particles at rest in between small invisible springs.
