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Rhoda303
Rhoda303 Rhoda303
  • 08-06-2015
  • Chemistry
Answered

Heated bricks or blocks of iron were used long ago to warm beds. A 1.49 -kg block of iron heated to 155 Celsius would release how many joules of heat as it cooled to 22 Celsius ?

Verified Answer :

kimeto3
kimeto3 kimeto3
  • 08-06-2015

Specific heat capacity= Quantity of heat/massxΔT
Shc of iron (constant)= 0.4494J/³C for 1g
1.49kg=1490g
Q=1490x(22-155)x0.4494
Q=89057.598J

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