Answer :
Q=mcΔT
Q=heat energy = 4750J
m=mass = ?
c= specific heat capacity = 1900J/(K·kg)
ΔT=change in heat = 30-20=10
[tex]m= \frac{Q}{c(dT)}[/tex] = 0.025kg=25g
Q=heat energy = 4750J
m=mass = ?
c= specific heat capacity = 1900J/(K·kg)
ΔT=change in heat = 30-20=10
[tex]m= \frac{Q}{c(dT)}[/tex] = 0.025kg=25g