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18 April, 03:39

A 49.2 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.

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  1. 18 April, 06:18
    0
    955.173 Joules

    Explanation:

    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

    Quantity of heat, Q = Mass * specific heat capacity * Change in temperature

    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
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