a hot iron bar is placed 100ml 22C water. the water temperature rises to 32C. how much heat did the water gain and how much heat did the iro

Question

a hot iron bar is placed 100ml 22C water. the water temperature rises to 32C. how much heat did the water gain and how much heat did the iron bar lose? Q=change T x C x M

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Thu Thủy 3 years 2021-08-20T00:13:36+00:00 1 Answers 5 views 0

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  1. Nem
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    2021-08-20T00:15:33+00:00
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    Answer:

    • Water gained: 10
    • Iron lost: -10

    Explanation:

    Given: Hot iron bar is placed 100ml 22C water, the water temperature rises to 32C

    To find: How much heat the water gain, how much heat did the iron bar lost

    Formula:Q = change T x C x M

    Solve:

    How much heat water gained

    Initial heat = 22, then rose to 32. To find how much heat the water gained, simply subtract the current heat by the initial heat.

                                                  32 – 22 = 10

    The water gained 10 amounts of heat.

    How much heat Iron lost

    Current heat = 32, then dropped to 22. To find how much heat the Iron lost, simply subtract the initial heat by the current heat.

                                                       22 – 32 = -10

    The Iron lost -10 amounts of water.      

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )