A quantity of ideal gas requires 800 kJ to raise the temperature of the gas by 10.0 K when the gas is maintained at constant volume. The same quantity of gas requires 900 kJ to raise the temperature of the gas by 10.0 K when the gas is maintained at constant pressure. What is the adiabatic gas constant of this gas

Respuesta :

Answer:

[tex]\gamma=1.125[/tex]

Explanation:

From the question we are told that:

Initial Heat [tex]Q_1=800kJ[/tex]

initial Temperature [tex]T_1=10.0K[/tex]

Final Heat [tex]Q_2=800kJ[/tex]

Final Temperature [tex]T_2=10.0K[/tex]

Generally the equation for Adiabatic constant is mathematically given by

[tex]\gamma=\frac{Cp}{Cv}[/tex]

Since

Equation for Heat [tex]dQ=nCdT[/tex]

Where

[tex]n_1=n_2\\\\T_1=T_2[/tex]

Therefore

[tex]Q_1=Cv\\\\Cv=800[/tex]

And

[tex]Cp=900[/tex]

Therefore

[tex]\gamma=\frac{900}{800}\\\\\gamma=\frac{9}{8}[/tex]

[tex]\gamma=1.125[/tex]