What is the constant k for air?

The nominal values used for air at 300 K are CP = 1.00 kJ/kg. K, Cv = 0.718 kJ/kg. K,, and k = 1.4. However they are all functions of temperature, and with the extremely high temperature range experienced in internal combustion and gas turbine engines one can obtain significant errors.

What is the gas constant R for air in kJ kg k?

0.2870

What is the k value of an ideal gas?

The ideal gas law can be written in terms of the number of molecules of gas: PV = NkT, where P is pressure, V is volume, T is temperature, N is number of molecules, and k is the Boltzmann constant k = 1.38 × 10–23 J/K.

Why is K used to represent a constant?

There is no notation that is accepted by everybody. In mathematics the letter k often is used to represent an arbitrary constant since it sounds like the first letter of “constant”, while “c” is used for many other tasks and usually is not available.

How do you know which ideal gas constant to use?

The properties of an ideal gas are all lined in one formula of the form pV = nRT, where: p is the pressure of the gas, measured in Pa, V is the volume of the gas, measured in m^3, n is the amount of substance, measured in moles, R is the ideal gas constant and.

How do you calculate the ideal gas constant?

Ideal gas law equation. The properties of an ideal gas are all lined in one formula of the form pV = nRT, where: p is the pressure of the gas, measured in Pa, V is the volume of the gas, measured in m^3, n is the amount of substance, measured in moles, R is the ideal gas constant and.

What is the value of ideal gas constant?

Ideal gas constant. The gas constant (symbol R) is also called the molar or universal constant. It is used in many fundamental equations such as the ideal gas law. The value of this constant is 8.3144598 J/(mol * K). The gas constant is often defined as the product of Boltzmann ‘s constant k (it relates the kinetic energy and temperature of a gas)…