Enter your answer in the provided box. The activation energy for the denaturation of a protein...
Enter your answer in the provided box. The rate constant of a first-order reaction is 2.35 x 10-45-1 at 350.°C. If the activation energy is 135 kJ/mol, calculate the temperature at which its rate constant is 9.00 x 10-45-1. °c
Enter your answer in the provided box. Assume that a reaction takes place at 340 K and 380 K. What must the activation energy be for the rate constant to double over this temperature range? 0 kJ/mol
points attempts left Check my work Enter your answer in the provided box. -1 The rate constant of a first-order reaction is 3.00 x 10 s 145 kJ/mol, calculate the temperature at which its rate constant is 7.65 x 10 S at 350.°C. If the activation energy is References eBook & Resources
For the decomposition of a peroxide, the activation energy is 17.4 kJ/mol. The rate constant at 25°C is 0.027 s-1. What is the rate constant at 45°C? For the decomposition of a peroxide, the activation energy is 17.4 kJ/mol. The rate constant at 25°C is 0.027 s-1. At what temperature will the rate constant be 35% greater than the rate constant at 25°C?
Enter your answer in the provided box. Given the same reactant concentrations, the reaction CO(g) + Cl2(g) COCl2() at 235°C is 54.3 times as fast as the same reaction at 157°C. Calculate the activation energy for this reaction. Assume that the frequency factor is constant. kJ/mol
Enter your answer in the provided box. A 456 g sample of water has an initial temperature of 18.0°C. After 50.9 kJ of energy is added to the water sample, what will be its final temperature? oc
Enter your answer in the provided box. Hemoglobin is the protein that transports 02 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules of O. If 1.58 g of hemoglobin combines with 2.48 mL of O2 at 37°C and 724 torr, what is the molar mass of hemoglobin? 10 g/mol (Enter your answer in scientific notation.)
3. Many biological macromolecules undergo a transition called denaturation, where the system unfolds. For a protein at a pH 2 the change in enthalpy associated to denaturation is 418 kJ/mol and the change in entropy is 1.30 kJ/mol. A) Calculate the change in Gibbs free energy for the denaturation of the protein at pH 2 and T 300 K. B) Calculate the equilibrium constant for the process at pH 2 and T 320 K. C) Based on your answer is...
2 attempts left Check my work Enter your answer in the provided box. The energy content of raisin bread is 13.1 kJ/g. Calculate the temperature increase when a slice of raising bread (34.0 g) is burned in the calorimeter. The heat capacity of the calorimeter is 38.77 kJ°C.
Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 25.00 g of ice at -9.00°C to liquid water at 0.500°C: 0 AH 6.02 kJ/mol m.p. at 1 atm: 0.0°C fus liquid: 4.184 J/g.°C Csolid: 2.09 J/g.oc