Question

Substance/Specific heat capacity
silver/0.235
copper/0.385
iron/0.449
aluminum/0.903
ethanol/2.42
water/4.184

An unknown substance has a mass of 10.5g. When the substance absorbs 9.450×10^1 J of heat, the temperature of the substance is raised from 25.0 C to 45.0C. What is the most likely identity of the substance?

Answer 1

\[Q=cm \Delta T \rightarrow c=\frac{Q}{m \Delta T}\]\[c=\frac{9.450*10^1J}{(10.5g)(20.0C)}=.450\frac{J}{g*C}\]This specific heat capacity most closely resembles that of iron's.