The hardest known mineral is _____. topaz talc diamond graphite
2 answers:
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Answer: [tex]CO_2(s)\rightarrow CO_2(g)[/tex]
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
is positive when randomness increases and
is negative when randomness decreases.
a)
2 molesof gas are converting to 2 moles of another gas , thus is zero.
b)
1 mole of solid is converting to 1 mole of liquid, the randomness increases and thus is positive.
b)
2 moles of ions are converting to 1 mole of solid, the randomness decreases and thus is negative
d)
1 mole of solid is converting to 1 mole of gas, the randomness increases drastically and thus is highly positive.