1.

Ratio of change in internal energy of a substance from 15oC to T and from T to 10oC is – 2, what is T?$

A. 5<sup>o</sup>C
B. 15<sup>o</sup>C
C. 20<sup>o</sup>C
D. 30<sup>o</sup>C
Answer» B. 15<sup>o</sup>C


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