...Now the ratio THERMIC ENGINES. 453 of 83-66 to 59-3 is 1-41, which, as we have already seen (§ 347), is the ratio of specific heat at constant pressure to specific heat at constant volume. In the case of air and perfect gases, the heat gained by compression or lost in expansion is almost...

...analysis of the gas pumped 1n these tests the specific heat is found to be .45. To find t. we have k=rat1o of specific heat at constant pressure to specific heat at constant volume, which for a perfect gas is 1.4. p,=pressure at outlet of exhauster in pounds per square inch. p, =...

...velocity of sound have furnished the most precise determinations hitherto made of the value of 1 +0, which, as above indicated, is the ratio of specific...employed to determine the quantity of heat absorbed by a body'in its passage from the solid to the liquid state. For instance, a piece of ice at zero is carefully...

...of any gas whose atomic weight we know; for the specific heats are inversely as the atomic weight. The ratio of specific heat at constant pressure to specific heat at constant volume is a constant amount (1 ••) 1 ). Specific Heats. Water = 1 -00000. Various modifications of the...

...density is 0'o033 gm- Per c.cm, at o°C., and under a pressure of 76 cm. of mercury, ^ = 981. What is the ratio of specific heat at constant pressure to specific heat at constant volume in ether vapour ? ANSWERS. 1. (a) 625 pound-degrees; (b) 868,750 foot-pounds; (c) 27,800,000 foot-poundals....

...appear, but it does no violence to probability to suppose that a mind so penetrating had made use of the ratio of specific heat at constant pressure to specific heat at constant volume afterwards employed by Mayer. The point of highest historic interest here is that no great step in...

...expansiou, or .0686 heat units; heneo the epeeiflc heat at constant volume = 0.2375 - .0086 = 0.1689. Ratio of specific heat at constant pressure to specific heat at constant volume = .2375 -t- .1089 = 1.406. (ÍW Specific Heat. p. 458.) Flow of Air through Orifice»,— The theoretical...

...gas is raised to 273°, thus increasing the volume to 2 1. Compute the mechanical equivalent of heat. [Ratio of specific heat at constant pressure to specific heat at constant volume =1.41.] 621. What is an isothermal line? an adiabatic line? Why is the adiabatic line through any point...

...expansion, or .0686 heat units; hence the specific heat at constant volume = 0.2375 — .0886 = 0.1689. Ratio of specific heat at constant pressure to specific heat at constant volume = .2375 -t- .1689 = 1.406. (See Specific Heat, p. 458.) Flow of Air through Orifices.— The theoretical...

...pressure in pounds per square inch absolute. pi = final pressure in pounds per square inch absolute. A" = ratio of specific heat at constant pressure to specific heat at constant volume. PO = density of gas in pounds per square foot (at 60° F. and 14.7 pounds per square inch absolute...