...formula, using the author's experimental results, decreases continuously as the temperature rises : the ratio of the specific heat at constant pressure to that at constant volume decreases from 0° to + 4°, and then increases continuously up to 35°, the highest temperature at...

...that a strict following of the law is impossible. A further formula is deduced for the calculation of the ratio of the specific heat at constant pressure to that at constant volume. This has the forms k = l + 2C/3cvm and k=l/l-2C/3cpm, in which £=2-98, A = cP/ct>, and m is the molecular...

...elementary or compound nature of argon, experiments were made on the velocity of sound in it. From these the ratio of the specific heat at constant pressure to that at constant volume was deduced in the well-known manner. The accuracy of the apparatus used was tested by preliminary...

..." conductivity of air, X " " constant of radiation according to Newton's law of cooling, and y " " ratio of the specific heat at constant pressure to that at constant volume. From ( I ) it is seen that the motion at any point may be considered as the resultant of two simple...

...and 3'0 for the diatomic gases and argon respectively, and the corresponding values for the ratio y of the specific heat at constant pressure to that at constant volume, 1/4 and T666 respectively. The ignition-points, obtained by means of calculations similar to that on...

...reduction of temperature. In every case, such as the above, whatever the expanding gas may be, if 7 be the ratio of the specific heat at constant pressure to that at constant volume, then it is evident that "i Pi or, using the differential notation, Ap being a decrement. And since...

...carbonic acid, from which constants the heat equivalent may be obtained by the formula the value of — or the ratio of the specific heat at constant pressure to that at constant volume being 1-3945, as ascertained by M. Kegnault in 1871, by experiments on the velocity of sound in air....

...acid, from which constants the heat equivalent may be obtained by the formula G - c' Q the value of — or the ratio of the specific heat at constant pressure to that at constant volume being 1 • 3945, as ascertained by M. Kegnault in 1871, by experiments on the velocity of sound in...

...Prove that in any substance the ratio of the specific heat at constant pressure to the specific heat at constant volume is equal to the ratio of the elasticity...escapes to the elasticity at constant temperature. Hence shew that fdp\ x/^N =fdj\ x/^X where p, v, t are the pressure, volume and absolute temperature...

...effected will be described in Chapter X. We may, ' however, here remark that, for all the permanent gases, the ratio of the specific heat at constant pressure to that at constant volume is independent of the temperature of the gas, and for air is about 1"41, DIFFUSION OF GASES. 94. If two...