Part A Substance A has a heat capacity that is much greater than that of substance B . If 10.0 g of substance A initially at \( 25.0^{\circ} \mathrm{C} \) is brought into thermal contact with 10.0 g of B initially at \( 75.0^{\circ} \mathrm{C} \) what can you conclude about the final temperature of the two substances once the exchange of heat between the substances is complete? The final temperature will be \( 50.0^{\circ} \mathrm{C} \). The final temperature will be between \( 25.0^{\circ} \mathrm{C} \) and \( 50.0^{\circ} \mathrm{C} \). The final temperature will be between \( 50.0^{\circ} \mathrm{C} \) and \( 75.0^{\circ} \mathrm{C} \). You can conclude nothing about the final temperature without more information. Submit Request Answer

To determine the final temperature when two substances are brought into thermal contact, we can use the concept of heat transfer. The heat lost by the hotter substance (substance B) will be equal to the heat gained by the cooler substance (substance A) when thermal equilibrium is reached. Given that substance A has a much greater heat capacity than substance B, it means that substance A can absorb a lot of heat without a significant change in its temperature. Conversely, substance B, with a lower heat capacity, will experience a more significant temperature change. 1. **Substance A** starts at \( 25.0^{\circ} \mathrm{C} \). 2. **Substance B** starts at \( 75.0^{\circ} \mathrm{C} \). Since substance A has a much greater heat capacity, it will not increase in temperature as much as substance B decreases in temperature. Therefore, the final temperature will be closer to the initial temperature of substance A than that of substance B. Thus, the final temperature will be between \( 25.0^{\circ} \mathrm{C} \) and \( 50.0^{\circ} \mathrm{C} \). So, the correct conclusion is: **The final temperature will be between \( 25.0^{\circ} \mathrm{C} \) and \( 50.0^{\circ} \mathrm{C} \).**