Finding Reaction Order Half-life and Rate Constant
Question: CA [mm] 4.40 3.55 2.98 2.57 2.26 2.01 1.81 1.65 t [s] 0 100 200 300 400 500 600 700 Use the method of half-life to find the order and the constant of speed.
For the reaction: H2 + C2H4 -> C2H6 In gaseous phase, the pre-exponential factor is 1.24*10^6 [M-1s-1] and the activation energy is 180 kJ/mol. find the entropy, the enthalpy and the gibbs free energy. see attachment
Finding Molar Mass Using Osmotic Pressure
An osmotic pressure device was used to determine the molar mass of a protein. A mass of 0.150 g of protein dissolved in 100 mL of H2O at 300 K supports a column of water 5.00 cm high by osmotic pressure. It takes 10.0 m of this water to equal 1.00 atm. Estimate the molar mass of the protein.
Enthalpy, Heat Capacity and Temperature Change of a Gas
Suppose that the enthalpy of some substance over a large temperature range can be expressed as a function of the temperature (where alpha, beta and gamma are constants): H =alpha*ln(T) + ln(gamma) + beta/T^2 a) What is the heat capacity of this substance at constant pressure? b) You begin with two samples each contai ...continues
Thermodynamic Changes of a Gas with Isochoric Rise in Pressure
a) The pressure of a monoatomic ideal gas in a closed system is reversibly and isochorically (constant volume) increased. Determine whether each of the following quantities is less than, equal to, or greater than zero. ΔT ΔV w q ΔP ΔU ΔH ΔS b) A real gas is found to have a molar vo ...continues
Temperature, Stoichiometry and Equilibrium
At low to moderate pressures, the equilibrium state of the water gas shift CO (g) + H2O (g) CO2 (g) + H2 (g) reaction is approximately described by the relation kp = (see attached file) The feed to a continuous shift reactor contains 30 mol% CO, 10 mol% CO2, 40 mol% water and the balance an inert gas. Th ...continues
Arrhenius Equation : Finding Activation Energy
The rearrangement of cyclopropane to propene has been studied at various temperatures with the following results. Rate constant, k (s-1) Temperature (K) 3.30 x 10-9 600 2.19 x 10-7 650 7.96 x 10-6 700 1.80 x 10-4 750 2.74 x 10-3 800 3.04 x 10-2 850 2.58 x 10-1 900 (a) From the appropriate plot of these data, determi ...continues
Reaction Kinetics Lab : Hydrolysis of Aspirin
Please see the attached files for the fully formatted problems. Use the data attached to work out the order of reaction in terms of rate (calculate the error associated with the determined value) Discuss the MECHANISM, HYBRIDIATION, BOND LENGTHS and REACTION NAME of the process discussed.
I just need the calculation part done. The mass of the solutes is as follows: .502g Tris and .4999g KNO3 and .4995g Pb(NO3)2 Solution Calorimetry: Heat of Ionic Reaction Solution Calorimetry is a convenient way of experimentally determining the heat of reaction in a liquid medium. Measurements in this lab will be made ...continues
Thermodynamics : Spontaneity of Reactions and Gibbs Free Energy
Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction 2 NH3(g) + CO2(g) → NH2CONH2(aq) + H2O(l) Given that delta G^o = -13.6 kJ, calculate delta G at 25 oC for the following sets of conditions. (a) 10 atm NH3, 10 atm CO2, 1.0 M NH2CONH2 (b) 0.1 atm NH3, 0.1 atm CO2, 1.0 M NH2CON ...continues
