Can anyone help me to solve this thermo question given by my lecturer? Please? This is a summary of what i tried to understand:

Okay, the question:

1st airflow: 3500 Nm3/hr.

T = 800 C

Cp = 1.3K

2nd airflow: 1805 Nm3/hr.

T = 80 C

Cp = 1.05K

(Data above are given)

Mixed gas airflow: 3500+1805 = 5305 Nm3/hr

T =

C

Cp =

C

My question is:

Wjat is the meaning of Cp, is it constant pressure?

If it is the constant pressure, why the values are so akward, doesn't follow the (T+273/T+273) rule?

How to calculate the mixed T and Cp?

And finally how to get the (standard temperature pressure) STP of the flow rate? (Am3/hr)

Thanks to anyone that can help.

Yong Tze Shoong,

University Technology of Malaysia.