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

Question

asked Nov 19, 2020 89.0k views

1 Answer

Naveed S · Answer 1 · 2020-11-24T16:36:30+0000

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