Question

The specific heat of aluminum is 0.88 J/g°C. How many joules will it take to make the temperature of a 50. g nugget go up from 20.°C to 70.°C?

Answer 1

Answer:

2200J

Explanation:

Given parameters:

Specific heat of aluminum  = 0.88J/g°C

Mass of nugget  = 50g

Initial temperature  = 20°C

Final temperature  = 70°C

Unknown:

Quantity of heat required for the heating = ?

Solution:

To solve this problem, we use the expression below;

       H  = m c Δt

H is the quantity of heat

m is the mass

c is the specific heat capacity

Δt is the change in temperature

        H  = 50 x 0.88 x (70 - 20) = 2200J