The heat capacity of solid iron is 0.447 J/gËC. If the same quantity of energy were transferred to a 450 g chunk of iron at 20ËC, what would be the final temperature?

The final temperature of the iron after the heat transfer of 65 kJ will be  343.14 .

The specific heat is the amount of heat required to raise the temperature of 1 g of substance by 1-degree celsius.

The specific heat can be given by:

Q = mcT

Q = specific heat = 65 kJ

c= heat capacity = 0.447 J/g

m = mass of the iron = 450 g

T = change in temperatue = final temperature - initial temperature

T = final temperature - 20

Putting the values in the equation:

65000 J = 0.447 J/g 450 g

65000 J = 201.15   ( final temperature - 20 )

Final temperature - 20  = 323.14

Final temperature = 343.14 .

The final temperature of the iron after the heat transfer of 65 kJ will be  343.14 .

For more information about heat transfer, refer to the link:

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Explanation:

Given that,

The heat capacity of solid iron is 0.447 J/g°C.

Mass, m = 450 g

Initial temperature,

Let the heat transferred, Q = 65 kJ

We need to find the final temperature. The heat transferred is given by :

So, the final temperature is .

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.