josephlilianahe7226 josephlilianahe7226
  • 01-08-2018
  • Physics
contestada

How many kj of heat are needed to completely melt 144 g of titanium metal, given that the metal is at its melting point? the heat of fusion for this metal is 18.7?

Respuesta :

I18ntech
I18ntech I18ntech
  • 01-08-2018

Given, mass of titanium metal = 144 g

Heat of fusion of titanium metal= 18.7 J/g

Heat of fusion is the amount of heat energy needed to change the state of one gram of a substance from solid to liquid or vice-versa.

Thus, 18.7 J of heat is needed to melt one gram of titanium metal.

Therefore, heat needed to melt 144 g of titanium metal = 18.7×144

= 2692.8 J

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