lecture2_020407 - You need to determine how many Calories...

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Heat capacity The sketch below shows two identical flasks with different volumes of water at the same temperature. Which of the following is true? 1. Flask 1 has more thermal energy than flask 2. 2. Flask 2 has more thermal energy than flask 1. 3. Flask 1 and flask 2 have the same amount of thermal energy
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Heat Capacity Plotted below are graphs of heat absorbed versus temperature for two systems. Which system has the larger heat capacity?
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Calorimetry Camphor (C 10 H 16 O) has a heat of combustion of 5903.6 kJ/mol. When a sample of 0.1204 g of camphor is burned in a bomb calorimeter, the temperature increases by 2.28 °C. Calculate the heat capacity of the calorimeter.
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Calorimetry Using the same calorimeter, you want to analyze a new anticalorie super-soda.
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Unformatted text preview: You need to determine how many Calories are in 250 g of the soda when it is decomposed in the calorimeter. The calorimeter undergoes a temperature change of -10.1C. If 250 g is one serving, how many Calories are in one serving? (1 Calorie = 4.18 kJ) Work How much work is associated with the expansion of 3.5 L of gas against a pressure of 0.98 atm in a) Latm and b) J ? Energy A balloon filled with 39.1 mol of He has a volume of 876 L at 0.0 C and 1 atm. The temp of the balloon is increased to 38.0 C as it expands to a volume of 998 L and pressure is held constant. Calculate q, w, and E for the He in the balloon. (Molar heat capacity for He is 20.8 kJ/mol)...
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This note was uploaded on 05/18/2008 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell University (Engineering School).

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lecture2_020407 - You need to determine how many Calories...

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