The scattering cross-sections (in barns) of hydrogen and oxygen at 1 Me V are 3.0 and 8.0, respectively. What is the value of σs for the water molecule at this energy?
The scattering cross-sections (in barns) of hydrogen and oxygen at 1 Me V are 3.0 and...
2. A beam of 100 keV neutrons is sent through a tank of water (H20, p = 1 g/cm3). The neutron scattering cross-sections of hydrogen and oxygen are os(H, 100 keV) = 12.5 b, os(0, 100 keV) = 3.6 b. (a) What are the macroscopic scattering cross-sections for this beam of neutrons from the hydrogen and oxygen? (b) The neutron beam has an initial intensity of 105 neutrons/second, after passing through 2.5 cm of water, what is the beam intensity...
A mixture of 3.0 mol of hydrogen gas and 1.5 mol of oxygen gas is placed in a sealed empty container at 25C. The container is made of a perfect insulting material. the mixture of gas is ignited with a spark and reats completely to form liquid water. What is the temperature of the water formed?
The dashed lines in the diagram represent cross-sections of equipotential surfaces drawn in 1-V increments.What is the work WAB done by the electric force to movea1-C charge from A to B?
Hydrogen peroxide decomposes spontaneously to yield water and oxygen gas according to the following reaction equation 24,0,(aq) → 2H0(i) +0,(8) The activation energy for this reaction is 75 kJ. mol. The enzyme catalase (found in blood) lowers the activation energy to 8.0 kJ. mol-1 At what temperature would the non-catalyzed reaction need to be run to have a rate equal to that of the enzyme-catalyzed reaction at 25°C? Number
Evan v Fluorine gas and water vapor react to form hydrogen fluoride gas and oxygen. What volume of hydrogen fluoride would be produced by this reaction if 8.5 ml of water were consumed? Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. 0.0 Check
The oxygen nucleus O(16) has a radius of 3.0 fm 1) With what speed must a proton be fired toward an oxygen nucleus to have a turning point 1.7 fm from the surface? Answer [v = 2.2×10^7m/s ] 2) What is the proton's kinetic energy in MeV? [I don't know how to figure this one out]
The dashed lines in the diagram represent cross-sections of equipotential surfaces drawn in 1-V increments.What is the work WAB done by the electric force to move a 1-C charge from A to B?What is the work WAD done by the electric force to move a 1-C charge from A to D?The magnitude of the electric field at point C isa) greater than the magnitude of the electric field at point B.b) less than the magnitude of the electric field at point B.c) equal...
4: Model a water molecule as 2 hydrogen atoms and one oxygen molecule at the ends of an equilateral triangle with sides of length 10-10m. (14 pts) A) Calculate the moment of inertia of this configuration about the center of the triangle. This requires a bit of geometry to get the distance from the ends to the center. (5 pts) B) Calculate the energy and wavelength of a photon released in the 1-2 to 1-1 tran- sition the l-10 to...
Question 1: In one bottle you have a mixture of oxygen and hydrogen. In a second one is water. Do they have the same energy? How do you know which one is a fuel and which is not? Question 2: you have two systems: 1) solid gold and water 2) solid sodium and waterWhich one can spontaneously release energy and why?
For the formation of one mole of water vapor from gaseous hydrogen and oxygen, the reported value of ΔG∘f is -228.57kJ/mol. When PH2 = 0.5atm, PO2 = 0.75atm, and PH2O = 1.5atm, what is ΔGf—the free energy of formation—for this same reaction at 298 K