A49.2 g sample of solid steel was heated from 24.1 °c to 67.3 °c.
what was the energy change? solid steel has a specific heat of 0.4494
j/gºc.

955.173 Joules

We are given;

Mass of solid steel = 49.2 g

Initial temperature = 24.1°C

Final temperature = 67.3 °C

Specific heat capacity, c = 0.4494 J/g°C

We are needed to calculate the quantity of heat

Q = mcΔT

ΔT = 67.3°C - 24.1°C = 43.2°C

Therefore

Q = 49.2 g × 43.2°C × 0.4494 J/g°C

   = 955.173 Joules

Therefore, the energy change is 955.173 Joules

answer; economic order quantity;

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