The specific heat of aluminum is 0.900 j/g•°c. how much heat is required to raise the temperature of a 30.0 g block of aluminum from 25.0°c to 75.0°c?

Respuesta :

Q= 1350 joules
Therefore 1350 joules is the heat required.
Ver imagen Jessilynn0903

Answer : The heat required is, 1350 J

Solution :

Formula used :

[tex]Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})[/tex]

where,

Q = heat required = ?

m = mass of aluminum = 30 g

c = specific heat of aluminum = [tex]0.900J/g^oC[/tex]    

[tex]\Delta T=\text{Change in temperature}[/tex]  

[tex]T_{final}[/tex] = final temperature = [tex]75^oC[/tex]

[tex]T_{initial}[/tex] = initial temperature = [tex]25^oC[/tex]

Now put all the given values in the above formula, we get the heat required.

[tex]Q=30g\times 0.900J/g^oC\times (75-25)^oC[/tex]

[tex]Q=1350J[/tex]

Therefore, the heat required is, 1350 J