Question

How much heat energy would be needed to raise the temperature of a 223 g sample of aluminum [(C=0.895 Jig Cy from 22.5°C to 55 0°C? Η Ο Ο Ο ΟΟ 10x10) not enough information given Prov 40 25 11 Next >

Answer 1

Answer : The heat energy needed would be, 6486.5125 J

Explanation :

To calculate the change in temperature, we use the equation:

$q=mc\Delta T\\\\q=mc(T_2-T_1)$

where,

q = heat needed = ?

m = mass of aluminum = 223 g

c = specific heat capacity of aluminum = $0.895J/g^oC$

$\Delta T$ = change in temperature

$T_1$ = initial temperature = $22.5^oC$

$T_2$ = final temperature = $55.0^oC$

Putting values in above equation, we get:

$q=223g\times 0.895J/g^oC\times (55.0-22.5)^oC$

$q=6486.5125J$

Therefore, the heat energy needed would be, 6486.5125 J