Question

How much heat is required to increase the temperature of 1 kg of steel from 21 °C to 22 °C?

9,000 j
306j
1j
500j

Answer 1

466J

Step-by-step explanation:

Given parameters:

Mass of steel = 1kg = 1000g

Initial temperature = 21°C

Final temperature = 22°C

Unknown:

Amount of heat required for this temperature increase = ?

Solution:

To solve this problem, we use the expression below:

So;

Heat absorbed = mass x specific heat of steel x change in temperature

Specific heat of steel = 0.466J/g°C

Therefore;

Heat absorbed = 1000 x 0.466 x (22 - 21) = 466J