The amount of energy needed to melt the ice is 1670 J
Explanation:
The amount of thermal energy needed to completely melt a certain amount of solid substance (already at melting point) is given by
[tex]Q=m\lambda_f[/tex]
where
m is the amount of the substance
[tex]\lambda_f[/tex] is the specific latent heat of fusion of the substance
Here, the mass of the ice is
m = 5 g = 0.005 kg
And the specific latent heat of fusion of ice is
[tex]\lambda_f = 334,000 J/kg[/tex]
Assuming that the ice is already at melting point, the thermal energy needed to melt the ice is
[tex]Q=(0.005)(334,000)=1670 J[/tex]
Learn more about specific heat:
brainly.com/question/3032746
brainly.com/question/4759369
#LearnwithBrainly
