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UNO [17]
3 years ago
14

Would you be able to help me?​

Chemistry
1 answer:
gtnhenbr [62]3 years ago
3 0

Answer:

yes...

Explanation:

wha

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What is the entropy change of the system when 17.5 g of liquid benzene (c6h6) evaporates at the normal boiling point? the normal
Vika [28.1K]
<span>1 mole of benzene (78g) requires 30.8 kJ/ of heat, so 11.5g will need ..... (it's a proportion calculation.) Temperature does not change at BPt and is not relevant if the temp of the liquid is already at the BPt ne definition of entropy is qrev/T, where qrev is the heat added in reversible operation (for complicated reasons pertaining to heat as a path function) and T is the temperature at which this is done. Phase changes are particularly good examples for calculations of changes in entropy, since temperature will not change will the bonds of a state are being broken. The calculations required boils down to: 1) finding the moles of benzene given from molar mass. 2) multiplying that moles by the heat of vaporization. 3)diving the heat energy required by the temperature of boiling point.</span>
7 0
3 years ago
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HELP QUICK PLEASE! GIVING 100 POINTS FOR FIRST RIGHT ANSWER
Vera_Pavlovna [14]

Answer:

16.5 kg

Explanation:

7 0
3 years ago
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Please help I’ll mark brainliest. Thank you :)
Jobisdone [24]

Answer:

a. There are only 5 electrons in 2p. 2p should be filled with 6 electrons prior to 3s and 3p

b. There are 8 electrons in 2p. 2p should be filled only with 6 electrons (not 8)

Explanation:

The typical electron configuration: 1s2 2s2 2p6 3s2 3p6

a. There are only 5 electrons in 2p

=> should be 1s2 2s2 2p6 3s2 3p2

b. There are 8 electrons in 2p

=> should be 1s2 2s2 2p6 3s2 3p1

6 0
2 years ago
Two examples of colloids
erica [24]
{\huge {\mathfrak {\orange {Answer :-}}}}

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3 years ago
What is the instantaneous acceleration of the particle at point B?
luda_lava [24]

__0 meters/second^2__

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