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4 September, 13:36

The specific heat capacity of zinc is 0.386 J/g ºC. How many joules would be released when 267 grams of zinc at 96.0 ºC were cooled to 28.0 ºC?

*Answer with a whole number*

Q = mcΔt

+4
Answers (1)
  1. 4 September, 14:43
    0
    70008.216 J

    Explanation:

    The following data were obtained from the question:

    Specific heat capacity (C) = 0.386 J/gºC

    Mass (m) = 267 g

    Initial temperature (T1) = 96.0ºC

    Final temperature (T2) = 28.0ºC

    Change in temperature (ΔT) = T1 - T2 = 96 - 28 = 68°C

    Heat (Q) = ... ?

    The heat released can be obtained as follow:

    Q = MCΔT

    Q = 267 x 0.386 x 68

    Q = 70008.216 J

    Therefore, the heat released is 70008.216 J
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