Question

¿Cuánto calor es necesario suministrar a 2 kilogramos de aluminio para que eleve su temperatura 20°C?

Answer 1

How much heat is necessary to supply 2 kilograms of aluminum to raise its temperature by 20 ° C?

Answer:

36000J

Explanation:

Given parameters:

Mass of aluminum = 2kg  = 2000g

Temperature rise  = 20°C

Unknown:

Amount of heat needed for the temperature change  = ?

Solution:

The amount of heat needed to cause this temperature rise is given as;

           H = m c (T₂ - T₁)

H is the amount of heat

m is the mass

c is the specific heat of aluminum = 0.9J/g°C

Insert the parameters and solve;

       H  = 2000 x 0.9 x 20 = 36000J