Explain uranium oxide is converted to uranium fluoride

Assignment Help Chemistry

Reference no: EM13257133

Uranium-235 is an important nuclear fuel. However, the ^235Uisotope is only a very small amount of naturally occurring uranium. Therefore, taking advantage of gas diffusion rates and molecular masses, naturaly occurring uranium(IV) oxide is converted to uranium(IV) fluoride and this in turn is converted to urnaium (VI) fluoride in a reaction with fluorine gas. The uranium (VI) fluoride is a gas and the different masses of the two uranium(VI) fluoride isotopes can be separated. Using the date below, determine the lattice energy,

delta H lattice energy of the uranium(IV) fluoride that is formed in the reactions described above.

1. U(s) + O2(g) 6UO2(s) DeltaH= !1084.9 kj/mol

2. UO2(s) + 4HF(g) 6 UF4(s) + 2H2O(g) DeltaH= !228.5kJ/mol

3. 1/2H2(g) + 1/2 F2(g) 6HF(g) DeltaH= !271.1 kJ/mol

4. H2(g) + 1/2 F2(g) 6 H2O(g) DeltaH= !241.8 kJ/mol

5. U(s) 6U(g) DeltaH= 527.2 kJ/mol

6. U(g) 6 U^4+ (g) = 4 e IE=11800 kJ/mol

7. F2(g) 6 2F(g) BE= 159 kJ/mol

8. F(g) + e 6 F^! (g) EA= !328 kJ/mol

9. U^4+ (s) + 4F^! (g) UF4 (s) LE= ?

Reference no: EM13257133

Questions Cloud

Construct a table of the relevant cash flows : You can solve for this in Excel if you wish, but you must also explain in words or with a mathematical formula how you arrived at the result.

Prepare a journal entries to record the transaction : Emmylou Company purchased 70 Harris Company 12%, 10 year. Prepare a journal entries to record the transaction described above.

Discuss what bootstrapping is and why it is important : Discuss the sources of funding available to entrepreneurs at the early stages of company. Discuss what bootstrapping is and why it is important.

Force of gravity from the sun were to be suddenly removed : Which path would a planet (like Earth) take if the force of gravity from the Sun were to be suddenly removed?

Explain uranium oxide is converted to uranium fluoride : Uranium-235 is an important nuclear fuel. However, the ^235Uisotope is only a very small amount of naturally occurring uranium. Therefore, taking advantage of gas diffusion rates and molecular masses, naturaly occurring uranium(IV) oxide is conver..

Find the output voltage of amplifier if voltage is applied : Find the output voltage of an amplifier if the applied voltage is 20 mV and a dB gain of 22 dB is attained. a. Determine Vo at a frequency one octave above the critical frequency. b. Determine Vo at a frequency one decade below the critical frequency..

How much must the state invest now to guarantee the prize : How much must the state invest now to guarantee the prize if the state can earn annually 7 percent on its funds? How much must the state invest if the annual payments are to be made at the beginning of the year?

Difference between the revenue listed : What is the difference between the revenue listed in item (1) and thatlisted in item (6)?

Prepare the net cash provided by operating activities : Prepare the net cash provided by operating activities section ofthe company's statement of cash flows for the year endedDecember 31, 2008 using the indirect method.

User Account

All Pages