If 75.0 J of heat energy is added to 25.0 g samples of different metals. Given their specific heat values, rank the metals in order from least to greatest final temperature.

Question

Quizplus · Accepted Answer

The final temperature reached by each sample is determined by the formula Q = m * c * ΔT, where Q is the heat added to the sample, m is the mass of the sample, c is the specific heat of the metal, and ΔT is the change in temperature. Since the same amount of heat is added to each sample, the sample with the lowest specific heat will have the highest final temperature. Based on the specific heat values of the metals, the order from least to greatest is Al, Cr, Cu, Ag, Au. Therefore, the sample of Al will have the highest final temperature and the sample of Au will have the lowest final temperature. The correct answer choice is B, which lists the metals in the correct order.

If 750 J of Heat Energy Is Added to 25