Question

Which of the following statements are true?

A. Energy as heat flows from a lower temperature to a higher temperature
B. Energy as heat flows from a higher temperature to a lower temperature
C. The amount of het in a closed system is constant
D. Energy as heat flowing into an object is determined by the amount of work done on the object.

I know the answer is not C.

Answer 1

B. Energy as heat flows from a higher temperature to a lower temperature.

Answer 2

'B' and 'C' are both true.