A Determination of the Ratio of the Specific Heats of by Shields M. C. PDF

By Shields M. C.

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Additional resources for A Determination of the Ratio of the Specific Heats of Hydrogen at 18 and -190C

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There is no denying these possibilities but there seems little experimental evidence for them. no significance In dismissing the radiation hypothesis it is interesting to con- one hypothetical experiment. Imagine a mass of ozone molecules in front of an opening in a high-temperature furnace. Radiation is passing from the furnace through the opening and into the mass of ozone molecules. Some of the radiation is of wave lengths around 2,800 A, so that the ozone is being decomposed photochemically.

The water is pumped up to a higher reservoir which is connected with a large overflow pipe extending back to the original reservoir. From the bottom of the upper reservoir a small exit pipe leads to a tank at a lower level. It is clear that the rate at which the water flows from the upper reservoir into the lower tank depends on the height of the water in the tank, and if this is maintained at a constant level, the rate of discharge into the lower tank will be constant. In this particular system the constancy of discharge will be maintained, even if the lifting pump is accelerated or retarded, because any extra water pumped into the upper reservoir by accelerating the pump will simply overflow and run back into the first tank.

Rice who has summarized this field in ari existence of free radicals of free radical chains as 19 interesting book. In evaluating this hypothesis it is first necessary to find proof for the existence of free radicals, and then to decide whether the presence 18 of free radicals in low concentration is part Sernenoff, Chemical Kinetics and Chain Reactions, Oxford University Press, Oxford (1935). 19 Rice and Rice, The Aliphatic Free Radicals, The Johns Hopkins Press, Baltimore (1935). CHEMICAL KINETICS $0 fundamental process or only an unimportant side issue.

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A Determination of the Ratio of the Specific Heats of Hydrogen at 18 and -190C by Shields M. C.


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