How many times faster will the reaction occur
Assume that the activation energy for a certain reaction is 173 kJ/mol and the reaction is started with equal initial concentrations of reactants. How many times faster will the reaction occur at 40 degrees Celsius than at 10 degrees Celsius?
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If the same balloon had been filled with helium, how long would it take for the balloon to shrink to a quarter of its original size under the same conditions?
At the same conditions, ice has a density of .917 g/cm^3. How much work is done at these conditions by 1 kg of ice as it melts to liquid water?
Explain why the acetylation requires one mole of aceticanhydride per mole of phenetidine, despite the fact that aceticanhydride contains two acetyl groups. How is the by-productcontaining the second acetyl group removed from phenacetin?
Knowing that a second ionization energy of Cesium is 25.05 eV,what is the wave length of UV light required to eject electrons from the 2nd ionization of a sample of cesium with a speed of 0.2 x10 ^ 6 m / s?.
The solution is weakly conducting compared with a solution of of the same concentration.Which of the following substances could the unknown be: KOH,NH3,HNO3,KClO2,H3PO3,CH3COCH3 (acetone)?
A 1.4- container of liquid nitrogen is kept in a closet measuring 1.2 by 1.2 by 1.9 . Assuming that the container is completely full, that the temperature is 29.2, and that the atmospheric pressure is 1.2
Explain how the structural composition of an ATP molecule makes this molecule important as the energy currency of the cell and describe how ATP is capable of transferring energy from catabolism to anabolism?
what are the mass and speed (in the initial particle rest frame) of the second particle?
An electrochemical cell has n = 5 (# of electronstransferred). At T = 434.97K, Ecell =0.65115 volts and at T = 303.24K, Ecell =0.76013 volts. Using F = 96485.34 C/mol, calculate the entropy change of the cell in J/K
An infinitely sharp zone of solute is placed at the center of acolumn at time t=0. After diffusion for time t1, the standarddeviation of the Gaussian band is 1.0mm. After 20 minutesmore, at time t2, the standard deviation is 2.0mm.
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