.oooo Sprint F 9:35 AM bbhosted.cuny edu 2 of 9 5) A candy sam ple is completely

Question

.oooo Sprint F 9:35 AM bbhosted.cuny edu 2 of 9 5) A candy sam ple is completely combusted in a bomb calorimeter. The calorimeter contains 982 g of water. and the measured temperature increase is 2.62 C. What is the fuel value of the candy sample in nutritional Calories? ISH. .00 cal/g. CI A) 2573 Cal B) 2570 Cal CO2.57 Cal D) 0.00267 Cal E)2.67 x 10 Cal 6) Which statement concerning a reversible reaction at um is FALSE? A) The concentration of the products is equal to the concentration of the reactants. B) The forward and reverse reaction rates are equal. C) There is no further change in the amount ofreactants and products. D) A stress to the system would cause the system to shift in the direction that bestrelievesthestress. E) All of the above statements are true for a reversible reaction at equilibrium. Answer 7) The formation of rust (Fezos) on an exposed piece of metal typically takes several months. Which ofthe following statements is NOT areasonable assumption about this chemical reaction 3020g A) The reaction has a low reaction rate, B) The reaction has low activation energy, C The rusting of iron would occur faster in the warmer summer months than in the cooler wintermonths. D) The rusting of iron would occur slower at higher altitudes where the concentration of oxygen is lower. E)All of the above statements are true about this chamical reaction. Answer 8) What is the equilibrium constant expression for the reaction shown below? IMgCOsl D) Answer

Explanation / Answer

5) Heat gained by water in the calorimeter=mass of water*specific heat of water*change in temperature

                                                             =982g *1Cal/g C *2.62 C=2572.84 Calories=fuel value

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