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10 June, 23:45

To begin the experiment, 1.5g of methane CH4 is burned in a bomb calorimeter containing 1,000 grams of water. The initial temperature of water is 25°C. The specific heat of water is 4.184 J/g°C. The heat capacity of the calorimeter is 695 J/°C. After the reaction the final temperature of the water is 37°C.

Using the formula qcal = Ccal • ΔT, calculate the heat absorbed by the calorimeter. Show work.

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  1. 11 June, 01:42
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    The calorimeter absorbs 8.3 kJ.

    Step-by-step explanation:

    The formula for the heat q absorbed by the calorimeter is

    q = CcalΔT

    dа ta:

    Ccal = 695 J/°C

    T₁ = 25 °C; T₂ = 37 °C

    Calculations:

    ΔT = T₂ - T₁

    ΔT = 37 - 25

    ΔT = 12 °C

    q = 695 * 12

    q = 8300 J

    q = 8.3 kJ
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