The melting point of aluminum is 660°C, its latent heat of fusion is 4.00 × 105 J/kg, and its specific heat is 900 J/kg ? K
If 300 kJ of thermal energy are added to 442 g of aluminum at 100°C, what is the final state of the system? That is, how much is liquid, how much is solid, and what is its temperature?
The system will be at 660°C, with 249 g of solid and 193 g of liquid aluminum.
You might also like to view...
A normal white dwarf is approximately the same size as ____
a. the Sun b. Jupiter c. Earth d. a large asteroid e. a house
Approximately how many days does it take for a massive star supernova to decline to 1% of its peak brightness?
A) 3 days B) 30 days C) 170 days D) 300 days
When an object falls through the air, as velocity increases the net force
A) increases. B) decreases. C) remains the same whether in air or in a vacuum.
Which of the following is the best description of how a fluorescent bulb works?
A) Electrons flowing through the bulb get heated up within the bulb, and these electrons emit light. B) A gas flows from one end of the bulb to the other, and the gas atoms are energized by the electric field which causes the atoms to emit light. C) Electrons flow through the bulb, causing a chemical reaction in the gas atoms inside the bulb, which causes these atoms to emit light. D) A gas fills the bulb and when the gas atoms strike the walls of the bulb the material in the wall emits light. E) Electrons flow from one end of the bulb to the other, hitting gas atoms and causing them to emit light.