...there is no opportunity for the heat to escape, what will be the change in its temperature ? If y be the ratio of the specific heat of air at constant pressure to its specific heat at constant volume, and/ 2 , /,, / 2 and /1 be the final and initial pressures and absolute temperatures of a quantity...

...there is no opportunity for the heat to escape, what will be the change in its temperature ? If 7 be the ratio of the specific heat of air at constant pressure to its specific heat at constant volume, and/2, /,, /2 and /! be the final and initial pressures and absolute temperatures of a quantity of...

...while the wave-length in air is to th'at in ether as 1.71 and 1.706 to 1, respectively. Assuming as the ratio of the specific heat of air at constant pressure to that at constant volume the value 1.41, the author calculates this ratio for steam and for the vapors...

...grams per sq. cm. for />, 42,500 gram-cm, per gram-degree COT/. Prob. Q. 7. Find in the last question the ratio of the specific heat of air at constant pressure to that at constant volume. D. 400. Prob. Q. St In what class of gases, alone, is the ratio of the two...

...corresponding ratio .between the final and initial pressures we have or ft _ /*i Y . Pi W . where y is the ratio of the specific heat of air at constant pressure to that at constant volume. The difference in y for dry and moist air is small, and may here be neglected,...

...in augmenting the velocity, and, in fact, that the elasticity should l)e reckoned as yE, where y is the ratio of the specific heat of air at constant pressure to that at constant volume. For air and elementary gases of low atomic weight, the value of y is about...

...adiabatically from pressure p to pressure p, , will be raised to the temperature t=([") ;'.,, where ;'=V being the ratio of the specific heat of air at constant pressure to that at constant volume. This mass of air must take up sufficient water to saturate itself at its volume,...

...volume. To obtain the corresponding ratio between the final and initial pressures we have where y is the ratio of the specific heat of air at constant pressure to that at constant volume. The difference in y for dry and moist air is small, and may here be neglected,...

...in augmenting the velocity, and, in fact, that the elasticity should be reckoned as yE, where y is the ratio of the specific heat of air at constant pressure to that at constant volume. For air and elementary gases of low atomic weight, the value of y is about...

...took unit mass of the substance instead of unit surface' Few knew the meaning of emissivity. Q. 7. If the ratio of the specific heat of air at constant pressure to the specific heat at constant volume is 1'40, find the rise of temperature produced in a mass of air...