. A 79 g sample of water at 21oC is heated until it becomes steam with a temperature of 143oC. Find the change in heat content of the syste

Question

. A 79 g sample of water at 21oC is heated until it becomes steam with a temperature of 143oC. Find the change in heat content of the system.

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Sigridomena 4 years 2021-07-20T17:17:56+00:00 1 Answers 63 views 0

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  1. niczorrrr
    0
    2021-07-20T17:19:17+00:00
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    Answer:

    40479.6 J

    Explanation:

    Applying,

    q = cm(t₂-t₁)……………….. Equation 1

    Where q = change in heat content of the system, c = specific heat capacity of the system, m = mass of the system, t₁ = initial temperature, t₂ = final temperature.

    From the question,

    Given: m = 79 g = 0.079 kg, t₁ = 21°C, t₂ = 143°C

    Constant: c = 4200 J/kg.°C

    Substitute these values into equation 1

    q = 4200(0.079)(143-21)

    q = 331.8(122)

    q = 40479.6 J

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