Passage IV
A bomb calorimeter is used to determine the amount of heat released when a substance is burned in oxygen (Figure 1). The heat, measured in kilojoules (kJ), is calculated from the change in temperature of the water in the bomb calorimeter. Table 1 shows the amounts of heat released when different foods were burned in a bomb calorimeter. Table 2 shows the amounts of heat released when different amounts of sucrose (table sugar) were burned. Table 3 shows the amounts of heat released when various chemical compounds were burned.
22. Based on the data in Table 2, one can conclude that when the mass of sucrose is decreased by one-half, the amount of heat released when it is burned in a bomb calorimeter will:
Your Answer is
Correct Answer is G
Explanation
See table 2 when the amount of sucrose is 4.0 g and 2.0 g, the corresponding heat released are 64.0 kJ and 32.1 kJ respectively. When the mass of sucrose is halved, the heat released is almost halved