a 1.0 mm thick and 10 cm × 10 cm large sheet of iron separates two gas com partments at 350°c. one compartment contains hydrogen. the pressure of h2 is maintained at 0.5 atm. the other compartment is maintained essentially free of hydrogen with an oxidizing gas present. it is well established that hydrogern dissolves into metals atomically. from the literature you know that for a partial pressure of h2 in the gas phase, the concentration of h atoms in iron is 0.0002 wt% at 350°c. the density of ron is 7.86 g/cm3. assume furthermore that the hydrogen diffusion coefficient in iron is 6 . 10-5 cm2/s independent of the hydro- gen concentration. calculate the amount of h2 (number of moles) that is trans- ported through the iron sheet in 1 hour.

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

b.

explanation:

10.0

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

there are no atoms