One mole of a gas absorbs $200 \ J$ of heat at constant volume. Its temperature increases from $298 \ K$ to $308 \ K$. The change in its internal energy is ....... Joules.
- A$200$
- B$-200$
- C$200 \times \frac{308}{298}$
- D$200 \times \frac{298}{308}$
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