Question

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

Answer 1

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

`Q = ms\Delta T`

here we know that

m = 50 g

s = 0.46 J/g C

`T_1 = 20 degree C`

`T_2 = 100 degree C`

now we will have

`Q = 50 * 0.46 * (100 - 20)`

`Q = 1840 J`

so it will require 1840 J heat to raise the temperature