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* 0.895J/g^oC* (55.0-22.5)^oC`

`q=6486.5125J`

Therefore, the heat energy needed would be, 6486.5125 J