Think about this problem: A known reaction has AU = 38 kJ/mol. If the reaction is...
Thinking about the previous problem: "A known reaction has AU = 38 kJ/mol. If the reaction is done and you measure the amount of work done to be w +2 kJ/mol, what is q in kJ/mol?" If you do the same reaction at constant volume, what is q in kJ/mol?
A known reaction has ΔU = 38 kJ/mol. If the reaction is done and you measure the amount of work done to be w = +2 kJ/mol, what is q in kJ/mol?
At 25°C, the following heats of reaction are known: AH (kJ/mol 167.4 2CIF + 02 →Cl20 + F20 2ClF3 + 202 →Cl20+3F20 341.4 2F2 + 02 → 2F20 At the same temperature, calculate ΔH for the reaction: ClF + F2 → CIF3 -43.4 A. -217.5 kJ/mol B.-130.2 kJ/mol C. +217.5 kJ/mol ○ D.-108.7 kJ/mol E. none of these QUESTION 4 Consider the reaction: When a 12.9-g sample of ethyl alcohol(molar mass 46.07 g/mol) is burned, how much energy is released...
Consider the following data for gold: atomic mass 196,97 € mol 2.54 electronegativity kJ electron affinity 222.8 mol ionization energy kJ 890.1 mol kJ heat of fusion 12.5 mol You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? (1) Au (g) + Au(g) release absorb Can't be decided with the data given. O yes no Is it possible to calculate the amount of energy absorbed or released by reaction (1)...
Initial Check certain catalyzed reaction is known to have an activation energy E 42.0 kJ/mol. Furthermore, the rate of this reaction is measured at 313. K and found to be 9.8 x 10 M/s. Use this information to answer the questions in the table below. (You may need to use the scrollbar to see all the choices.) the kept the same, but the temperature is raised by5% from 313, K to 329, K. The rate will How will the rate...
A certain reaction is known to have an activation energy E = 70.0 kJ/mol. Furthermore, the rate of this reaction is measured at 362. K and found to be 7.9x 10 MIs. Use this information to answer the questions in the table below. (You may need to use the scrollbar to see all the choices.) Suppose the concentrations of all reactants is kept the same, but the temperature is lowered by 10% from 362' K to 326. K. The rate...
A certain catalyzed reaction is known to have an activation energy E - 45.0 kJ/mol. Furthermore, the rate of this reaction is measured it 317 K and found to be 3.8 x 10 M/s. Use this information to answer the questions in the table below. Suppose the concentrations of all reactants is kept the same, but the temperature is raised by 5% from 317. Kto 333. K. The rate will choose one How will the rate of the reaction change?...
A constant-volume calorimeter was calibrated by carrying out a reaction known to release 1.15 kJ of heat in 0.700 L of solution in the calorimeter (q = -1.15 kJ), resulting in a temperature rise of 3.00 °C. In a subsequent experiment, 350.0 mL of 0.20 M HCIO, (aq) and 350.0 mL of 0.20 M NaOH(aq) were mixed in the same calorimeter and the temperature rose by 6.36 "C. What is the change in the internal energy of the reaction mixture...
manize. Create -878.5 kJ 1. A degreasing agent, tetrachloroethylene, is produced in the reaction CHI(g) + 4 HCl(g) + 2 O2(g) → C Cla(1) + 4H2O(l) AH AHY(kJ/mol): 52.26 .92.31 0 285.8 a) determine AH"for CC1(1) -878.5=(DHC, cely + 4x-285.9) 132. 2664-92.31) a) AH° for CC.() = 32.28 kJ b) How much heat (kJ) would be evolved when 7.5 kg of CH4(g) reacts completely (with stoichiometric amounts of HCl and O2)? 7.5ky 10009 2 7500 MO-975 23253125 29 b) heat,...
ΔGf° = +38 kJ/mol for gaseous mercury under standard conditions. Write the balanced reaction for the production of gaseous mercury from liquid mercury. Also write the equilibrium expression for that reaction. What is the relationship between the equilibrium constant and the pressure of gaseous mercury? Use the Gibbs energy given above to calculate the vapor pressure of gaseous mercury under standard conditions.