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\b[Original question.]
Enunciate Boyle's law connecting the volume and tension of a gas.
Explain the process of respiration, as far as it is due to the motion of the Diaphragm.
Assuming the lungs to contain 1600 cubic centimetres of air at the termination of an expiration, and 400 cubic centimetres to be introduced by each inspiration, if, after an expiration a vertical tube be placed in the mouth, with its lower end dipping in mercury, and, the nose being stopped, the act of inspiration be performed, to what height will the mercury rise in the tube ? The height of the mercury in the barometer being 760 m.m., and the air in the tube being neglected.
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