Question: 0 . 3 ? Air at 3 0 0 C and 1 3 0 kPa flows through a horizontal 7 - cm ID pipe at

0.3?
Air at 300C and 130kPa flows through a horizontal 7-cm ID pipe at a velocity of 42ms.
Calculate Ek(W), assuming ideal gas behavior.
If the air is heated to 400C at a constant pressure, what is Ek=Ek(400C)-Ek(300C)?
Why would it be incorrect to say that the rate of transfer of the heat to the gas in part (b) must
equal the rate of change of kinetic energy?
0.3? Air at 300C and 130kPa flows through a horizontal 7-cm

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