Question: Methane enters a 3-cm ID pipe at 30C and 10bar with an average velocity of 5.00m/s and emerges at a point 200 m lower than

Methane enters a 3-cm ID pipe at 30°C and 10bar with an average velocity of 5.00m/s and emerges at a point 200 m lower than the inlet at 30°C and 9bar.

(a) Without doing any calculations, predict the signs (+ or –) of ΔE_k and ΔE_p, where signifies (outlet – inlet). Briefly explain your reasoning.

(b) Calculate ΔE_k and ΔE_p, (W), assuming that the methane behaves as an ideal gas.

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