Q = mcΔT
where: Q = heat energy in J
m= mass of substance in kg
c = specific heat capacity of substance in J/kgK
ΔT = change in temperature in K
Note: specific heat capacity of zinc is not included in the problem but a quick research shows that it is approximately 390J/kgK.
Note also that one degree celsius change is equal to one kelvin change so there is no need for conversion from celsius to kelvin
Substituting:
Q = (0.027kg)(390J/kgK)(100 -22 K)
= 821 J
