1.

If a certain mass of steam is considered as the thermodynamic system, then the energy equation becomes

A. Q=ΔKE + ΔPE – ΔU + W
B. Q=ΔKE + ΔPE – ΔU – W
C. Q=-ΔKE – ΔPE + ΔU + W
D. Q=ΔKE + ΔPE + ΔU + W
Answer» E.


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