Question

The specific heat capacity of Aluminium is 880J/KgₒC, calculate the amount of energy required to increase the temperature by 40ₒC of an aluminium block of mass a. 250g b. 1.5kg​

Answer 1

Answer:

(a) 8800J

(b) 52800J

Explanation:

s=E/m×∆t

Here,

(a) s=880J/kg°C, ∆t=40°C, m=0.25kg

E=880×0.25×40

E=8800J

(b) Now,

s=880J/kg°C, ∆t=40°C, m=1.5kg

E=880×1.5×40

E=52800J

Answer 2

As we know that,

Given :

The specific heat capacity of aluminum is $880 J/kg$ ° C

temperature 40° c

Find out:

the amount of energy required to increase the temperature by 40ₒC of an aluminium block of mass.

Let us:

→   s = E/m×∆t

    E = 880×0.25×40

    s=880J/kg°C

   m=0.25kg

∆t=40°C

E =8800 J

→  s=880J/kg°C

   ∆t=40°C

m=1.5kg

E=880×1.5×40

E=52800J

Hence, the amount of energy required at the temperature of 40°C.

when mass is 250 kg then  E =8800 J.

when mass is 1.5 kg then E = 52800J.