Physics, 12.09.2019 20:30 tennispro154
Martin mixed sulfur (a yellow solid) with iron filings (a black solid) in a ceramic dish called a crucible. then he separated them using a magnet. what kind of a change is this?
a.
change in state
b.
mixing and separation
c.
replacement
d.
synthesis
Answers: 3
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Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
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Martin mixed sulfur (a yellow solid) with iron filings (a black solid) in a ceramic dish called a cr...
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