Use the following to answer question:
-Heat is added to a substance at a constant rate.The substance starts as a solid and is melted; the liquid is heated and vaporized; finally,the vapor is heated.This process is shown in the graph.The specific heat of the solid can be found by
A)multiplying the length of B (in seconds)by the rate at which heat is added,and dividing by the mass of the substance.
B)multiplying the length of D (in seconds)by the rate at which heat is added,and dividing by the mass of the substance.
C)dividing the rate at which heat is added by the product of the slope of A and the mass of the substance.
D)dividing the rate at which heat is added by the product of the slope of C and the mass of the substance.
E)dividing the rate at which heat is added by the product of the slope of E and the mass of the substance.

Question

Use the following to answer question: 
-Heat is added to a substance at a constant rate.The substance starts as a solid and is melted; the liquid is heated and vaporized; finally,the vapor is heated.This process is shown in the graph.The specific heat of the solid can be found by
A)multiplying the length of B (in seconds)by the rate at which heat is added,and dividing by the mass of the substance. 
B)multiplying the length of D (in seconds)by the rate at which heat is added,and dividing by the mass of the substance. 
C)dividing the rate at which heat is added by the product of the slope of A and the mass of the substance. 
D)dividing the rate at which heat is added by the product of the slope of C and the mass of the substance. 
E)dividing the rate at which heat is added by the product of the slope of E and the mass of the substance.

Quizplus · Accepted Answer

The specific heat of the solid can be found using the formula Q = mcΔT, where Q is the amount of heat added, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature. From the graph, we can see that segment A represents the heating of the solid. The slope of segment A represents the rate at which heat is added, and the mass of the substance is given. Therefore, we can use the formula Q = mcΔT to solve for c by rearranging the formula to c = Q / (m * ΔT) and substituting the values we have. This gives us c = rate of heat added / (slope of A * mass of substance), which matches choice C.

Use the Following to Answer Question