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A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is. | |
A. | 30 kJ [Wrong Answer] |
B. | 54 kJ [Correct Answer] |
C. | 84 kJ [Wrong Answer] |
D. | 114 kJ [Wrong Answer] |