Helium has the special property that its internal energy is directly proportional to its
absolute temperature. Consider a ﬂask of helium with a temperature of 20 C.
If it is heated to twice its internal energy, what will its temperature be?
1. 293 C
2. 313 C
3. 40 C
4. None of these
5. 293 K
6. 313 K
The Attempt at a Solution
I have no idea how to solve this, I thought it would be 40C but the online homework said it was wrong.