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A 220 g rock at 10 °C is completely immersed in 630 g of water at 60 °C. Which one of the following statements is true right after the rock goes into the water?

User Logistef
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Final answer:

The question relates to the transfer of heat between a rock and water until they reach the same final temperature, a concept in physics involving thermal equilibrium. Without additional information, such as the specific heat capacities, we cannot calculate the final temperature.

Step-by-step explanation:

The question concerns the thermal equilibrium that results when two bodies of different temperatures are brought into contact – in this case, a rock and water. When the rock is placed in the water, heat will transfer from the warmer water to the colder rock until both reach the same final temperature. The specific heat capacities of the substances and their masses will determine the rate of heat transfer and the final temperature of both the rock and the water. Based on the principle of conservation of energy, the heat lost by the water will be equal to the heat gained by the rock until thermal equilibrium is reached.

Calculating the final temperature requires the use of the formula Q = mcΔT, where Q is the heat transferred, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. However, we are not provided with the specific heat capacities nor asked to calculate the final temperature, so we cannot solve for the final temperature here without additional information.

User Nik FP
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