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29 April, 09:08

When one gram of liquid ethanol, C2H5OH (l), is burned, 29.7 kJ of heat are released. How much heat is released when 4.337 pounds of liquid ethanol are burned?

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  1. 29 April, 11:30
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    58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.

    Explanation:

    Given that:-

    When 1 gram of liquid ethanol is burnt, 29.7 kJ of energy is released.

    The conversion of pounds to gram is shown below as:-

    1 pound = 453.6 gram

    Given mass of liquid ethanol = 4.337 pounds.

    So,

    4.337 pounds = 453.6*4.337 grams = 1967.2 grams

    Thus,

    When 1967.2 gram of liquid ethanol is burnt, 29.7*1967.2 kJ of energy is released.

    58425.84 kJ is released when 4.337 pounds of liquid ethanol are burned.
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