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Q: What is the value of the of gamma in air?
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Does gamma ray ionise the air?

yes


How far does gamma travel in air?

over 20 meters


What is the speed of gamma rays in air?

negligibly less than c.


What type of radiation is assigned a value of zero mass and zero charge?

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What is the value of air?

the r value of air is pretty high


What speed to gamma rays travel in air?

10 with 20 zeroes after it, I think. (km per sec)


What is the r value of air?

the r value of air is pretty high


What is the R-value of air?

the r value of air is pretty high


What is the value of polytropic exponent n in reversible polytropic process?

the value of polytropic exponent "n" in reversible process will vary from 1 to adiabatic constant "gamma"


What kind of gamma ray can penetrate solids?

Gamma rays are gamma rays are gamma rays.


What would the air temperature inside a conventional jet airliner be if outside air at an altitude of 10 km pressure of 250 mb and a temperature of -60C is brought inside and compressed to a 1000?

The compression of air in a jet turbine is often approximated as an adiabatic process. The governing equation is pv^(gamma) is constant in an adiabatic process. Gamma is the ratio Cp/Cv, where Cp is the specific heat for a constant pressure process and Cv is the specific heat for a constant volume process. Combining this with the ideal gas law you can derive the temperature-pressure relationship T2/T1 = (p2/p1)^(kappa) where kappa = (gamma-1)/gamma. Keep in mind that everything has to be in absolute units (e.g. temperature in kelvins and pressure in Pa,absolute.) For a diatomic gas, gamma=1.4, so kappa=0.286. Therefore, the final temperature is T2=T1*(p2/p1)^(kappa) =213 K * (1000/250)^0.286 = 213 * 1.48658 = 316.6 K. This is the ideal case. For engineering calculations a lower value of gamma is sometimes used (say 1.3).