Homework Answers
The question can be answered according to Le-Chatlier's principle.
a.The temperature changed from 273K to 320K. That is, the temperature increased. While temperature increases in a reaction, the reactants will get more energy and cross its threshold activation energy easily to attain the products. So,the rate of reaction will increase.
b.In the first reaction, the concentration of A was 4moles and that of B was 4moles. In the second reaction the concentration of A is 2moles and the concentration of B remains constant. That is, the concentration of one of the reactants get decreased.Then, the rate of reaction will decrease.
c.Catalyst is a substance used in reactions in order to increase the rate of the reaction. So, here also the rate of reaction will increase.
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3. A reaction container contains 4 moles of reactant A and 4 moles of reactant B....
A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a...
A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a pressure of 1.60 x 106 Pa. (a) What is the average kinetic energy of the gas molecules in the container. (b) If the gas is nitrogen (N2), what is the rms speed of each gas molecule? (c) How much heat must be added to raise the temperature of the gas by 100 K? NB. The atomic mass of nitrogen is 14.0067 g/mol. True False
A 1.00 liter solution contains 0.33 M ammonia and 0.25 M ammonium perchlorate, If 0.13 moles...
A 1.00 liter solution contains 0.33 M ammonia and 0.25 M ammonium perchlorate, If 0.13 moles of hydrobromic acid are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of hydrobromic acid.) A. The number of moles of NH3 will decrease. 4 B. The number of moles of NH * will remain the same. C. The equilibrium concentration of H2O* will decrease. D. The pH will...
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A 1.00 liter solution contains 0.53 moles hypochlorous acid and 0.41 moles potassium hypochlorite. If 0.20 moles of hydrobromic acid are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of hydrobromic acid.) A. The number of moles of HCIO will remain the same. B. The number of moles of CIO will remain the same. C. The equilibrium concentration of H,0* will decrease. D. The pH...
A 1.00 liter solution contains 0.34 M ammonia and 0.44 M ammonium bromide. If 0.110 moles...
A 1.00 liter solution contains 0.34 M ammonia and 0.44 M ammonium bromide. If 0.110 moles of barium hydroxide are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of barium hydroxide.) _______TrueFalse A. The number of moles of NH3 will increase. _______TrueFalse B. The number of moles of NH4+ will remain the same. _______TrueFalse C. The equilibrium concentration of H3O+ will remain the same. _______TrueFalse...
A 1.00 liter solution contains 0.36 M ammonia and 0.47 M ammonium bromide. If 0.240 moles...
A 1.00 liter solution contains 0.36 M ammonia and 0.47 M ammonium bromide. If 0.240 moles of sodium hydroxide are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of sodium hydroxide.) A. The number of moles of NH3 will decrease. True False B. The number of moles of NH will remain the same. C. The equilibrium concentration of H30* will decrease. D. The pH will...
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Question 4: (1 point) A container at 35.0 °C initially contains AB (g) in equilibrium with...
Question 4: (1 point) A container at 35.0 °C initially contains AB (g) in equilibrium with AB (1) AB (1) AB (g) A catalyst (of negligible voluite) is added to the container such that AB (g) quickly decomposes and reaches equilibrium al 35.0 PC accorcling to the reaction: AB(y) A(g) +B(g) K;=0.700 at 35.0°C If the initial tolal pressure of the container (with AB only) is 0.901 bar, what is the total pressure (in bar) of the container (still containing...
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A 1.00 liter solution contains 0.45 M ammonia and 0.59 M ammonium perchlorate. If 0.150 moles...
A 1.00 liter solution contains 0.45 M ammonia and 0.59 M ammonium perchlorate. If 0.150 moles of calcium hydroxide are added to this system, indicate whether the following statements are TRUE or FALSE. (Assume that the volume does not change upon the addition of calcium hydroxide.) A. The number of moles of of NHz will decrease. (^_ B. The number of moles of of NH4+ will increase. A C. The equilibrium concentration of Hz0will decrease. ( D. The pH will...
1. A certain first order reaction has a rate constant of 0.036 min-1. How much of the reactant will remain if the reacti...
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A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a pressure of 1.60 x 106 Pa. (a) What is the average kinetic energy of the gas molecules in the container. (b) If the gas is nitrogen (N2), what is the rms speed of each gas molecule? (c) How much heat must be added to raise the temperature of the gas by 100 K? NB. The atomic mass of nitrogen is 14.0067 g/mol. True False
A 1.00 liter solution contains 0.33 M ammonia and 0.25 M ammonium perchlorate, If 0.13 moles of hydrobromic acid are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of hydrobromic acid.) A. The number of moles of NH3 will decrease. 4 B. The number of moles of NH * will remain the same. C. The equilibrium concentration of H2O* will decrease. D. The pH will...
A 1.00 liter solution contains 0.53 moles hypochlorous acid and 0.41 moles potassium hypochlorite. If 0.20 moles of hydrobromic acid are added to this system, indicate whether the following statements are true or false. (Assume that the volume does not change upon the addition of hydrobromic acid.) A. The number of moles of HCIO will remain the same. B. The number of moles of CIO will remain the same. C. The equilibrium concentration of H,0* will decrease. D. The pH...
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