8. How many calories of heat energy (Q) would be released as a 2,500 g iron (Fe) frying pan at 190˚C cools to 25˚C?

Question

8. How many calories of heat energy (Q) would be released as a 2,500 g iron (Fe) frying pan at 190˚C cools to 25˚C?

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Neala 4 years 2021-08-14T18:17:47+00:00 1 Answers 16 views 0

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  1. Eirian
    0
    2021-08-14T18:19:42+00:00
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    Answer:

    Q=197505J

    Explanation:

    From the question we are told that:

    Mass m=2500g=2.5kg

    Initial heat of pan i_h=190 \tetxtdegree

    Final heat of pan f_h=25˚C \tetxtdegree

     

    Generally the equation for Heat energy released is mathematically given by

     Q=mC \triangle T\\\\Q=2.5*462 *(190-26)\\\\Q=1155 *(190-26)\\\\Q=1155 *(171)\\

     Q=197505J

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