Heat And Light An Elementary Text book Theoretical And Practical for Schools An
The book Heat And Light An Elementary Text book Theoretical And Practical for Schools An was written by author Richard Glazebrook Here you can read free online of Heat And Light An Elementary Text book Theoretical And Practical for Schools An book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Heat And Light An Elementary Text book Theoretical And Practical for Schools An a good or bad book?
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The water runs down into AB and some of it evaporates; the pressure in AB is increased and the mercury is driven down in AB and rises in CD. Wait for some little time, to allow the space to become saturated, and make sure that some water is left uncondensed in AB', if no water is visible, introduce some more in the manner just described. The difference in level between the mercury columns in AB and CD does not measure the pressure of the vapour directly, because the air in AB now occupies a gre...ater volume than previously; its pressure is therefore less than it was. Raise CD until the mercury in AB comes back to its original level. The air in AB has now the same volume and pressure as before, the height of the mercury in CD above that in AB measures the pressure due to the vapour. Thus the saturation pressure of aqueous vapour at the temperature of the experiment and in presence of air at atmospheric pressure is measured. EXPERIMENT (31). To observe the effect of change of tem- perature on the saturation pressure of a vapour.
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