93.2 LP 4. The specific heat of iron is 0.450 J/g.K. a) What is the heat capacity of a 25.0 g block of iron? b) Wha...

Question

Question

Answer 1

Answer #1

a)

Heat capacity = mass * specific heat capacity

= 25.0 g * 0.450 J/g.K

= 11.25 J/K

Answer: 11.2 J/K

b)

Molar mass of Fe = 55.85 g/mol

use:

molar heat capacity = specific heat capacity * molar mass

molar heat capacity = 0.45 J/g.K * 55.85 g/mol

molar heat capacity = 25.13 J/mol.K

Answer: 25.1 J/mol.K

Answer 2

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