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Aluminum Metal Volume

Alumminum metal melts at 660 degree Celsius and boils at 2450 degree C. Its density is 2.70 grams/cc. Calculate the following:

the volume occupied by 15 milligrams of aluminum vapor at its boiling point and under a pressure of 1140 torr.

the volume occupied by 100 kilograms of the metal at 25 C.

If the specific heat capacity of aluminum metal is .89 Joules per gram-degree C, how many Joules of energy are required to heat 10 kilomoles of aluminum from 250 degree C to 500 degree C.

If the mass in part 1 of this problem is subject to 100 atmospheres pressure at the boiling point, what would the volume be (assume an ideal gas)

If the mass in part 1 was dissolved in an excess of aqueous HCl, what colume of hydrogen gas would be released at STP?

Solution Preview

Alumminum metal melts at 660 degree Celsius and boils at 2450 degree C. Its density is 2.70 grams/cc. Calculate the following:
1. The volume occupied by 15 milligrams of aluminum vapor at its boiling point and under a pressure of 1140 torr.
V = nRT/P
Here, P = 1140 torr = 1140/760 atm = 1.5 atm, T = 2450+273.16 = 2723.16K,
R = 0.0821 l-atm/mol-K
n = 0.015/27 = 0.000556
Therefore, ...

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