How many joules of heat are absorbed when the temperature of a 13.9 g sample of CaCO₃ (s)increases from to Specific heat of calcium carbonate is A)130 J B)0.68 J C)s-130 J D)-0.68 J E)9.5 J

Question

Quizplus · Accepted Answer

We can use the formula Q = m × c × ΔT, where Q is the heat absorbed, m is the mass of the sample, c is the specific heat, and ΔT is the change in temperature. Plugging in the given values, we get:

Q = (0.0139 kg) × (837 J/kg·K) × (1 K)
Q = 130 J

Note that the temperature change is positive, so the heat absorbed should also be positive. Therefore, choices C and D can be eliminated. Option E is not a valid answer, as the calculated heat absorbed is much higher than the specific heat, which is not possible. Thus, the correct answer is A, 130 J.

How Many Joules of Heat Are Absorbed When the Temperature