Respuesta :

Answer:

your answer is c. 900 joules of heat

Answer:

C) 900 J

Explanation:

Calculate the heat needed to heat 0.5 kg of aluminum.

As the problem does not tell us that there is a change of state during this process the formula of heat that we must use is

[tex]Q=mc\Delta T[/tex]

[tex]m= 0.5 Kg[/tex]

[tex]c(specific heat)= 880 J/Kg.K[/tex] (this value is a constant for aluminum)

[tex]\Delta T= 2K[/tex]

[tex]Q= 0.5 Kg . 880 \frac{J}{Kg.K}.2 K\\Q= 880 J[/tex]

The exact amount of heat to heat 0.5 kg of heat is 880 J, but this value could be rounded to the nearest hundred that would be 900 J