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16 October, 10:17

What is the energy content in joules of a 1.28g sample of oatmeal that raises the temperature of 1.50 kg of water in a calorimeter from 25.0 C to 27 C

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  1. 16 October, 14:13
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    12560 J.

    Explanation:

    To calculate the energy, we use the relation:

    The amount of heat absorbed by water = Q = m. c.ΔT.

    where, m is the mass of water (m = 1.5 kg = 1500.0 g).

    c is the specific heat capacity of water = 4.186 J/g°C.

    ΔT is the temperature difference = (final T - initial T = 27°C - 25°C = 2°C).

    ∴ The amount of heat absorbed by water = Q = m. c.ΔT = (1500.0 g) (4.186 J/g°C) (2°C) = 12560 J.
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