Calculate the energy needed to raise the temperature of 10 g of iron from 25 degree Celsius to 500 degree Celsius if specific heat capacity of iron is 0.45 Jg^{​ -1}degree Celsius ^-1.
 

Dear Student,

Please find below the solution to the asked query:

Difference in temperature ΔT = (500-25) = 475^oC
​Specific heat =  0.45J/g^oC  [given]
mass =10g [given]
Q = mass $\times$ specific heat $\times$ ​ΔT                     [where Q= energy required
                                                                                   ​ΔT = difference in temperature]

Q = 10g $\times$ 0.45J/g^oC $\times$475^oC
  = 2137.5 J

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