Aluminum is the pure metal element from which the Duralumin alloy is made.
Duralumin contains aluminum and copper. An alloy developed first by a German metallurgist. Dura is actually part of the trade name: dura for durable.
More durable than raw aluminum it is used in airplane frames, laminated with coat of aluminum. Combining strength of the alloy and corrosion resistance of pure aluminum.
B. warm and sunny
but if there is a cold front already in chicago and they collide it would be
a. warm and rainy
Two electrons in it's first energy level; eight electrons in it's second energy level; and six valence electrons in it's outermost energy level
Depression in freezing point (Δ
) =
×m×i,
where,
= cryoscopic constant =
,
m= molality of solution = 0.0085 m
i = van't Hoff factor = 2 (For
)
Thus, (Δ
) = 1.86 X 0.0085 X 2 =
Now, (Δ
) =
- T
Here, T = freezing point of solution
= freezing point of solvent =
Thus, T =
- (Δ
) = -
answer
changing the temperature and increase in the pressure
Change in concentration, pressure, catalyst, inert gas addition, etc. have no effect on concentration, pressure, catalyst, inert gas addition lead to a shift in equilibrium position .
