Question

Two substances, mercury with a density $13600kg/m^3$ and alcohol with a density $0.8kg/m^3$ are selected for an experiment. If the experiment requires equal masses of each liquid, what is the ratio of alcohol volume to the mercury volume?

• A. $\frac{1}{15}$
• B. $\frac{1}{17}$
• C. $\frac{1}{13}$
• D. $17$

Answer 1

The correct option is D $17$

The density of mercury is $13.6kg/m^3$ and the volume be $v_m$

The density of alcohol is $0.8kg/m^3$ and the volume be $v_a$

Given that masses are equal , so we get $m_a=m_m$

$\Rightarrow \frac{v_a}{v_m}=\frac{13.6}{0.8}=17$

Therefore correct option is $D$