If the temperature is kept constant, what change in volume would cause the pressure of an enclosed gas to be reduced to one-third of its original value? a) increasing the volume by a factor of nine b) decreasing the volume by a factor of three c) increasing the volume by a factor of three d) decreasing the volume by a factor of nine

c) increasing the volume by a factor of three.

Explanation:

Hello,

By recalling the Boyle's Law:

One states the pressure change:

Now, replacing the pressure at the second state one obtains for the volume at the second state:

Finally, one concludes that the volume must be increased by a factor of three.

Best regards.

where are the choice options?

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.