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28 January, 13:15

How much heat is required to heat a 5.0 g pyrex glass dish (c=0.176 J/gC) from 23 degrees C to 65 degrees C?

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  1. 28 January, 13:20
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    Q = 36.96 j

    Explanation:

    Given dа ta:

    Mass of pyrex glass dish = 5.0 g

    Specific heat capacity = 0.176 j/g.°C

    Initial temperature = 23 °C

    Final temperature = 65°C

    Solution:

    Specific heat capacity:

    It is the amount of heat required to raise the temperature of one gram of substance by one degree.

    Formula:

    Q = m. c. ΔT

    Q = amount of heat absorbed or released

    m = mass of given substance

    c = specific heat capacity of substance

    ΔT = change in temperature

    ΔT = 65°C - 23 °C

    ΔT = 42°C

    Q = 5 g * 0.176 j/g.°c * 42°C

    Q = 36.96 j
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