1 Answer

Rubayeet · Answer 1 · 2021-08-09T01:18:59+0000

The heat released : -110560.632 J

Heat can be calculated using the formula:

Q = mc∆T

Q = heat, J

m = mass, g

c = specific heat, joules / g ° C

∆T = temperature difference, ° C / K

m =465 g

c water = 4.186 J/gram °C

∆T = temperature difference = 18.2 - 75 = - 56.8 °C

Then the heat :

$\tt Q=m.c.\Delta T\\\\Q=465* 4.186* -56.8\\\\Q=\boxed{\bold{-110560.632~J}}\rightarrow -=exothermic$

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