Final answer:
Given the same amount of heat added to equal masses of copper and silver, the silver will reach a higher temperature because it has a lower specific heat capacity compared to copper.
Step-by-step explanation:
The specific heat capacity of a substance determines how much heat is required to raise the temperature of a given amount of the substance by a certain amount. Given the specific heats of copper and silver, we can calculate which metal will reach a higher temperature when 100 cal of heat is added to one gram of each at 25°C. To find the final temperature for each metal, we use the formula q = mcΔT, where q is the heat added, m is the mass, c is the specific heat, and ΔT is the change in temperature.
For copper, c = 0.0920 cal/g°C; for silver, c = 0.0562 cal/g°C. By substituting the values into the formula, we calculate the temperature change for each metal. Since silver has a lower specific heat capacity than copper, it requires less heat to raise the temperature of one gram by one degree Celsius. Therefore, if both metals receive the same amount of heat, silver's temperature will increase more than that of copper's. Consequently, the silver will reach a higher temperature compared to the copper when each receives 100 cal of heat.