Question

Identify the symbols in the equation.

In the equation, Q = mC(T2 – T1), Q is the amount of _______ needed, m is the _______ , and T1 and T2 are the initial and final temperatures. The higher the________C, the more energy you need to produce a given temperature change in a material.

A. Q = energy, m = mass, higher the specific heat.
B. Q = heat, m = time, higher the temperature.
C. Q = mass, m = energy, higher the volume.
D. Q = time, m = heat, higher the density.

Answer 1

In the equation Q = mC(T2 – T1), Q represents the heat transfer, m is the mass, C is the specific heat, and T1 and T2 are the initial and final temperatures. Answer A is correct because it identifies these symbols accurately.

Step-by-step explanation:

In the equation Q = mC(T2 – T1), Q is the amount of heat transfer needed, m is the mass of the substance, and T1 and T2 are the initial and final temperatures, respectively. The term C represents the specific heat of the material, which is a measure of the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00°C. The higher the specific heat (C), the more energy you need to produce a given temperature change in a material. Therefore, the correct answer is A. Q = energy, m = mass, higher the specific heat.