Answer:
Explanation:
a) - Taking enthalpy from the ideal air structure that is :
Given,
Then, we have to apply the equation of the energy rate balance.
After applying that we have:
Then, we have to put values in the equation.
b) - Here, we have to apply the equation of the continuity.
Then, we have to put values in the equation.
Then, the values are :
and,
Then, we have to put values in the equation.