The temperature of an object increases by 39.4 °C when it absorbs 3715 J of heat. Calculate the heat capacity of the object. %3D J/°C The mass of the object is 393 g. Use the table of specific heat values to identify the composition of the object. Substance Specific heat (J/(g °C)) 0.129 silver 0.240 iron 0.444 aluminum 006'0 The object is composed of gold. aluminum.

The temperature of an object increases by 39.4 °C when it absorbs 3715 J of heat. Calculate the heat capacity of the object. %3D J/°C The mass of the object is 393 g. Use the table of specific heat values to identify the composition of the object. Substance Specific heat (J/(g °C)) 0.129 silver 0.240 iron 0.444 aluminum 006'0 The object is composed of gold. aluminum.

Living By Chemistry: First Edition Textbook

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ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction

SectionU5.5: The Heat Is On: Specific Heat Capacity

Problem 1E

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A 50-mL solution of a dilute AgNO3 solution is added to 100 mL of a base solution in a coffee-cup calorimeter. As Ag2O(s) precipitates, the temperature of the solution increases from 23.78 C to 25.19 C. Assuming that the mixture has the same specific heat as water and a mass of 150 g, calculate the heat q. Is the precipitation reaction exothermic or endothermic?
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