1 Answer

Schoel · Answer 1 · 2020-03-16T08:47:49+0000

Answer:

$1.84\cdot 10^5 J$

Step-by-step explanation:

The heat absorbed by the piece of iron is given by:

$Q=mC_S \Delta T$

where:

m = 34 g is the mass of the piece of iron

$C_s = 450 J/g^(\circ)C$ is the specific heat of iron

$\Delta T=24 C-12 C=12^(\circ)C$ is the variation of temperature of the piece of iron

Substituting numbers into the formula, we find

$Q=(34 g)(450 J/gC)(12 C)=1.84\cdot 10^5 J$

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