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10 February, 18:00

You have 1.00g of two metals a&b. The specific heat of metal A is 0.568j/g• °c and metal B is 1.34j/g•°c both are heated to a temp. Of 80°c. Which will heat up fastest

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  1. 10 February, 18:16
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    Metal A will heat up faster

    Explanation:

    Step 1: Data given

    Mass of the 2 metals = 1.00 grams

    The specific heat of metal A is 0.568j/g * °c

    The specific heat of metal B is 1.34j/g*°c

    Initial temperature = 80 °C

    Step 2: Calculate energy needed

    A high specific heat value means that it takes MORE energy to raise (or lower) its temperature.

    A low value means that it does not take very much energy to heat or cool it.

    Step 3: Calculate energy needed to raise 1 °C

    Q = m*c*ΔT

    Metal A: Q = 1.00g * 0.568 J/g°C * 1°C

    Q = 0.568 J

    Metal B Q = 1.00g * 1.34 J/g°C * 1°C

    Q = 1.34 J

    We need 0.568 Joules energy to raise the temperature with 1°C for metal A.

    We need 1.34 Joules energy to raise the temperature with 1°C for metal B.

    Since we need less energy to raise the temperature for metal A, it will heat up faster.
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