Question
Determine if each of the four processes below describes positive or negative changes to the internal energy of the system.
I. water absorbs heat from the surroundings and becomes steam
II. steam expands and pushes against the surrounding air
III. fuel molecules burn and heat the surroundings
IV. air is compressed into an inner tube by an external pump
I. water absorbs heat from the surroundings and becomes steam
II. steam expands and pushes against the surrounding air
III. fuel molecules burn and heat the surroundings
IV. air is compressed into an inner tube by an external pump
A positive positive negative negative
B positive negative positive negative
C positive negative negative positive
D negative positive negative positive
E negative positive positive negative
This question is taken from Chem 1010 – General Chemistry 1 » Summer 2021 » Quiz 5 Chapter 4
