a bag of ice cubes absorbs 149,000 J of heat, which causes its temperature to increase by 5.23 degrees celsius. what is the mass of the ice

Question

a bag of ice cubes absorbs 149,000 J of heat, which causes its temperature to increase by 5.23 degrees celsius. what is the mass of the ice in the bag?
Ice=c=2000J/(kg*c) (unit=kg)

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Ben Gia 4 years 2021-09-03T19:12:55+00:00 2 Answers 23 views 0

Answers ( )

  1. danthu
    0
    2021-09-03T19:14:01+00:00
    Reply

    Answer: 14.2447

    Explanation:

  2. thienan
    0
    2021-09-03T19:14:45+00:00
    Reply

    Answer:

    14.3kg

    Explanation:

    Given parameters:

    Quantity of heat = 149000J

    Change in temperature = 5.23°C

    specific heat of the ice = 2000J/kg°C

    Unknown:

    Mass of the ice in the bag = ?

    Solution:

    The heat capacity of a substance is given as:

                H = m c Ф

    H is the heat capacity

    m is the mass

    c is the specific heat

    Ф is the temperature change;

      since m is the unknown, we make it the subject of the expression;

                        m = H/ mФ

                      m = \frac{149000}{2000 x 5.23}  = 14.3kg

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