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What happens when the internal energy of a material increases?. A. its temperature will rise B. it will go through a phase change C. A and B D. A or B

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scme1702
D. A or B
The temperature of a substance cannot increase during phase change, so both A and B cannot happen simultaneously. And internal energy is the sum of the microscopic potential and kinetic energies of a substance, which increase with temperature and phase transition. 

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