How many joules of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5C?

Question

How many joules of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5C?

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Vodka 5 years 2021-08-16T02:20:27+00:00 1 Answers 12 views 0

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  1. kiet
    0
    2021-08-16T02:21:41+00:00
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    Answer:

    Q = 4133.2 J

    Explanation:

    Hello there!

    In this case, since these calorimetry problems are based off the following heat equation involving heat (Q), mass (m), specific heat (C) and temperatures (T):

    Q=mC(T_2-T_1)

    Thus, we plug in the given variables to obtain:

    Q=62.0 g*2.433 \frac{J}{g\°C}* (40.5\°C-13.1\°C)\\\\Q=4133.2J

    Regards!

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