# Lecture17_upload - Specific heat capacities of some liquids...

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Specific heat capacities of some liquids at room temperature (in J/g.K): Acetic acid 2.18 Acetone 2.15 Ethanol 2.30 Benzene 1.80 Bromine 0.50 Ethyl ether 2.20 Gasoline 2.20 Water 4.18

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If the same amount of heat is added to 5.00 g samples of each of the metals below, which metal will experience the smallest temperature change? A.  Al B.  Au C.  Cu D.  Fe Metal Specific Heat Capacity (J/g.K) Al 0.897 Au 0.129 Cu 0.385 Fe 0.449

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How much iron at 80°C must be added to raise the temperature of a cup of water (200 mL) from 19°C to 20°C? ( C water = 4.184 J/gK ; C iron = 0.449 J / g.K) Question: A. 15.5 g B. 31.1 g C. 52.3 g D. 67.6 g
Example Example How much heat must be added to convert 100 g of liquid water at 20.0°C completely to steam at 100°C? H v = 2256 J/g ; C = 4.184 J/(g·K) A. 33.4 kJ B. 22.5 kJ C. 259 kJ D. 8368 J E. 122 kJ

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A  At which of the following points will the removal of 5 kJ of heat cause some of the sample to condense to a liquid ?
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Lecture17_upload - Specific heat capacities of some liquids...

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