How much heat (in J) is needed to increase the temperature of 8.11 kg of aluminum...

Question

Question

How much heat (in J) is needed to increase the temperature of 8.11 kg of aluminum from 16.75 to 88.26 deg-C?

Answer 1

Answer #1

Specific Heat of aluminium is 0.91kJ/kgK

Heat required=mass*specific heat capacityof Al*change i n temperature

i.e. Q=8.11*0.91*(88.26-16.75)

=8.11*0.91*71.51

=527.751kJ

=527751J

Answer 2

Answer #2

Q = m c dT = 8.11*910*(88.26-16.75)=527751 J

Answer 3

Answer #3

Q = m*cp*(tf-ti)

= 8.11* 0.897 * (88.26-16.75)

= 520.21 J

Answer 4

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