contestada

If the specific heat of iron =0.46J/g Celsius how much heat is needed to warm 50 g of iron from 20 degrees Celsius to 100 degrees Celsius

Respuesta :

Heat energy required to raise the temperature of iron will be given as

[tex]Q = ms\Delta T[/tex]

here we know that

m = 50 g

s = 0.46 J/g C

[tex]T_1 = 20 degree C[/tex]

[tex]T_2 = 100 degree C[/tex]

now we will have

[tex]Q = 50 \times 0.46 \times (100 - 20)[/tex]

[tex]Q = 1840 J[/tex]

so it will require 1840 J heat to raise the temperature

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