Answer:
b.
[tex]0.45J/g\textdegree C[/tex]
Explanation:
Specific heat capacity is the amount of heat required to raise one gram of substance by one degree celcius.
It's calculated by the formula:[tex]s=\frac{q}{m\bigtriangleup T}[/tex], where q=heat and m= mass
[tex]\bigtriangleup T=20-0=20\textdegree C\\q=1004J\\m=111.6g[/tex]
Therefore:
[tex]s=\frac{1004J}{111.6g\times20\textdegree C}\\=0.45J/g\textdegree C[/tex]
Hence the iron's specific heat capacity is [tex]0.45J/g\textdegree C[/tex]
