Answer:
Explanation
we know that
Δ H= m C ΔT
where
ΔH = change in enthalpy (j)
m=mass of the given substance which in this case is water
C= specific heat capacity
ΔT=change in temperature
we know that given mass of water =29.6 g
and ΔT=T2-T1=125-(-55)=180
specific heat capacity of water is 4.18 j/g °C
therefore ΔH= 29.6 g*4.18 j/g °C* 180 °C
so ΔH=22271.04 j
