Passage IV
When substances are heated, they typically expand (increase in volume). Under certain circumstances, some substances will contract (decrease in volume) when heated. Table 1 shows the change in volume that occurred when 1.0000 L samples of solids at different initial temperatures were heated. Tables 2 and 3 show the results for similar trials using 1.0000 L samples of liquids and gases, respectively.
(Note: No phase changes occurred in any of the trials, and the gas samples were heated at constant pressure.)
19. Which of the following substances listed in Tables 1-3 expanded by the same amount each time it was heated, regardless of its initial temperature?
Your Answer is
Correct Answer is C
Explanation
Look at the substances whose Change in volume does not change in the last column of tables 1-3. Table 1 contains lead and silver; table 2 contains ethanol and mercury; table 3 contains no such substances. So the mercury of option C meets