Robert Boyle conducted pioneering experiments in which he demonstrated the physical characteristics of air and the necessary role of air in combustion, respiration, and the transmission of sound. Boyle described this work in 1660 in New Experiments Physio-Mechanicall, Touching the Spring of the Air and its Effects. To the second edition of this work, in 1662, he appended his report of 1661 to the Royal Society on the relationship, now known as Boyle's law, that at a constant temperature the volume of a gas is inversely proportional to the pressure. In The Sceptical Chymist, Boyle in 1661 attacked the Aristotelian theory of the four elements (earth, air, fire, and water) and also the three principles (salt, sulfur, and mercury) proposed by Paracelsus. Instead, he developed the concept of primary particles which by coalition produce corpuscles. According to this concept, different substances result from the number, position, and motion of the primary matter. All natural phenomena were therefore explained not by Aristotelian elements and qualities but by the motion and organization of primary particles. Boyle did not postulate different kinds of primary elements—the 19th-century view—but his ideas are valid within certain limits. In his experimental work he also studied the calcination of metals and proposed a means of distinguishing between acid and alkaline substances, which was the origin of the use of chemical indicators. He was also interested in trades and manufacturing processes.
a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant. This empirical relation was formulated by the French physicist J.-A.-C. Charles about 1787 and later by Joseph Gay-Lussac. It is a special case of the general gas law and can be derived from the kinetic theory of gases under the assumption of a perfect (ideal) gas. Measurements show that at constant pressure the thermal expansion of real gases, at sufficiently low pressure and high temperature, conforms closely to Charles's law.
2006-07-20 04:24:59
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answer #1
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answered by Anonymous
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Archimedes - Roman emperor who invented the arch. Blaise Pascal - Mexican scientist who chanced on the place the malicious software comes from in the backside of a bottle of Mezcal. Daniel Bernoulli - American frontiersman who invented the catapult. Later replaced his call to Daniel Boone. Robert Boyle - although Thomas Edison is severely credited for the invention, this Swedish dandy truthfully invented the incandescent electric powered lightbulb. He offered the invention to Edison in replace for a marginally speeding cravat. Jacques Charles -- French-Indian who first chanced on a thank you to sort candy into the scrumptious hearts, stars, clovers, moons, and so on. that are in fortunate Charms cereal.
2016-11-02 09:59:56
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answer #3
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answered by overbay 4
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