Which of the following metals will increase in temperature the LEAST if 150 g of each metal has 3.00 kJ of heat added?Question 28AnswerZinc (specific heat = 0.387 J g-1 K-1)Cadmium (specific heat = 0.231 J g-1 K-1)Titanium (specific heat = 0.523 J g-1 K-1)Tungsten (specific heat = 0.134 J g-1 K-1)Lead (specific heat = 0.129 J g-1 K-1)
Question
Which of the following metals will increase in temperature the LEAST if 150 g of each metal has 3.00 kJ of heat added?Question 28AnswerZinc (specific heat = 0.387 J g-1 K-1)Cadmium (specific heat = 0.231 J g-1 K-1)Titanium (specific heat = 0.523 J g-1 K-1)Tungsten (specific heat = 0.134 J g-1 K-1)Lead (specific heat = 0.129 J g-1 K-1)
Solution
The metal that will increase in temperature the least when the same amount of heat is added will be the one with the highest specific heat capacity. This is because specific heat capacity is a measure of how much heat energy is required to raise the temperature of a certain amount of a substance by a certain temperature. Therefore, the higher the specific heat capacity, the more heat energy is required to raise the temperature, meaning the temperature will increase less for a given amount of heat energy.
From the given options, Titanium has the highest specific heat capacity (0.523 J g-1 K-1), so it will increase in temperature the least when 3.00 kJ of heat is added to 150 g of it.
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