Consider the following reaction at a certain temperature, which initially only contains SO3(g) 2SO3(g) ⇌ 2SO2(g) + O2(g)

The initial partial pressure of SO3(g) is 0.125 bar. When the reaction reaches equilibrium, the total pressure is found to be 0.164 bar. calculate K for this reaction. Express your answer to three significant figures.

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.