Passage II
In the periodic table, a column of elements is called a group. For each of 5 elements in Group 2A and for each of 5 elements in Group 3A, Table 1 gives the atomic mass (average mass of 1 atom in atomic mass units, amu) and 3 other properties at a temperature of 298 K:
• density,
• specific heat (amount of heat required to raise the temperature of 1 g of a substance by 1 K),
• thermal conductivity (ability to conduct heat; the greater the thermal conductivity, the more effectively the substance conducts heat).
Figure 1 shows, for Al and for Mg, how the thermal conductivity varies between 1 K and 100 K.
9. According to Table 1, at 298 K, the specific heat of indium is closest in value to the specific heat of which of the following elements?
Your Answer is
Correct Answer is A
Explanation
Looking at Table 1, Indium's specific heat is 0.233, which is closest to Barium's 0.204.