A text-book on chemistryFor the use of schools and colleges . ts atomshave been forced apart by the heat. By decreasing the pressure exerted bythe atmosphere we may also cause an in-crease in the size of the interstices of asubstance. In Fig. 4, a is a glass globenearly -filled with water, but containing a bubble of airat the upper part. Its neck, 5, descends,air-tight, through the top of a bell-jar, d^and terminates in a vessel of water, exhausting the air from the bell-jarby the air-pump, the bubble of air, a,will be seen to expand, and will eventu-ally fill the entire bulb and tube. On
A text-book on chemistryFor the use of schools and colleges . ts atomshave been forced apart by the heat. By decreasing the pressure exerted bythe atmosphere we may also cause an in-crease in the size of the interstices of asubstance. In Fig. 4, a is a glass globenearly -filled with water, but containing a bubble of airat the upper part. Its neck, 5, descends,air-tight, through the top of a bell-jar, d^and terminates in a vessel of water, exhausting the air from the bell-jarby the air-pump, the bubble of air, a,will be seen to expand, and will eventu-ally fill the entire bulb and tube. Onrestoring the pressure of the air, the bub-ble contracts to its former size. An illustration of cohesion, the forcethat opposes heat in the regulation of in-terstices, is seen in the experiment of thebullets. If two leaden bullets have eacha bright spot pared upon it, and the two be then pressed Describe Fig. 2. What fact does Fig. 3 illustrate? How may theinterstices between atoms be enlarged ? Describe Fig. 4. Describethe experiment of the leaden Fig. 4.
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Keywords: ., bookcentury1800, bookde, booksubjectchemistry, booksubjectphysics
