Qual a capacidade térmica de um objeto que, ao receber 10000 cal de energia, tem sua temperatura elevada de 25°C para 75°C?

Question

Qual a capacidade térmica de um objeto que, ao receber 10000 cal de energia, tem sua temperatura elevada de 25°C para 75°C?

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Philomena 2 months 2021-07-26T00:16:49+00:00 1 Answers 4 views 0

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    2021-07-26T00:18:15+00:00

    Answer:

    200 cal/^{\circ}C

    Explanation:

    When heat energy is supplied to an object, the temperature of the object increases according to the equation:

    Q=C\Delta T

    where

    Q is the heat supplied

    C is the heat capacity of the object

    \Delta T is the change in temperature

    In this problem we have:

    Q=10,000 cal is the energy supplied

    \Delta T=75C-25C=50C is the change in temperature of the object

    Therefore, the heat capacity of the object is:

    C=\frac{Q}{\Delta T}=\frac{10,000}{50}=200 cal/^{\circ}C

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