The sign of ΔSsys for diffusion of perfume vapors through the room is positive.
The measure of disorderliness or randomness of a thermodynamic system is known as entropy. No energy in the universe is completely transferred into work done and that portion of energy increases the randomness of the system.
ΔS is positive when entropy is increases and vice versa. Whenever the randomness of a particular system increase, entropy increases and ΔS becomes positive.
When the perfume vapors diffuse through a room its volume expands which results in increase of the randomness due to the motion of the molecules and hence the sign of ΔSsys becomes positive.
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Answer:
In general, the number of valence electrons is the same within a column and increases from left to right within a row. Group 1 elements have just one valence electron and group 18 elements have eight, except for helium, which has only two electrons total.
Ionic bonds form only between metals and nonmetals. That's because metals “want” to give up electrons, and nonmetals “want” to gain electrons. It takes energy to remove valence electrons from an atom and form a positive ion
Probably just to see how burnt the food can get
Answer:
D
Explanation:
The environment always changes, and sometimes it can be a bad thing. Hope this helps! plz mark as brainliest!
