Answer:
d) none of the above
Explanation:
The law that describes the relationship between pressure and volume of an ideal gas (under constant temperature and amount of substance) is Boyle's law.
It states that pressure is inversely proportional to the volume. This would mean that a graph of P vs 1/V would be a line.
See the attached picture for a graph of P vs V.
Answer: burning paper
Explanation:
The paper burns in air to form smoke and ash. which makes it a chemical change.
Melting gold bars is the process that involves an increase in entropy