User Zillai

67

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6

answers

50k

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Ortho-effect in substituted aromatic acids and bases

May 1 '20 at 4:26 Mathew Mahindaratne 28k

37

votes

4

answers

25k

views

Gibbs free energy-minimum or zero?

equilibrium free-energy

Sep 26 at 18:49 Community♦ 1

34

votes

4

answers

30k

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What is the difference between ∆G and ∆G°?

thermodynamics equilibrium free-energy

Sep 6 '18 at 7:15 orthocresol♦ 57.5k

26

votes

3

answers

55k

views

Rationalising the order of reactivity of carbonyl compounds towards nucleophiles

organic-chemistry carbonyl-compounds reactivity

Aug 18 '14 at 11:08 Community♦ 1

20

votes

3

answers

471

views

Why don't alkynes undergo preferential anti bromination to the degree that alkenes do?

organic-chemistry halides stereoselectivity

Dec 18 '18 at 12:08 andselisk♦ 32.4k

16

votes

3

answers

38k

views

Migratory aptitude in pinacol-pinacolone rearrangement

organic-chemistry alcohols carbocation

May 21 '18 at 2:13 Gaurang Tandon 8,246

13

votes

4

answers

5k

views

How is chemical energy stored in carbon

energy

Oct 15 '19 at 6:34 Buck Thorn 15k

12

votes

2

answers

39k

views

ATP break down and energy release?

bond biochemistry energy

Dec 30 at 14:05 Karsten Theis 22.6k

11

votes

3

answers

4k

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What is the difference between ΔG and ΔrG?

physical-chemistry thermodynamics free-energy

Apr 29 '18 at 0:33 orthocresol♦ 57.5k

10

votes

1

answer

19k

views

Why is a ketone not capable of hydrogen bonding among themselves?

intermolecular-forces hydrogen-bond

Apr 29 '15 at 23:57 ron 78.8k

10

votes

2

answers

2k

views

Most stable conformational isomer of 3-methoxycyclohexan-1-ol

organic-chemistry alcohols isomers cyclohexane ethers

Dec 29 '16 at 23:16 Community♦ 1

9

votes

2

answers

2k

views

Must a good leaving group be a weak base, or a weak nucleophile?

organic-chemistry reaction-mechanism

Jul 3 '17 at 14:37 orthocresol♦ 57.5k

9

votes

2

answers

5k

views

Is the equation dU= TdS - PdV always valid (even for irreversible processes?)

thermodynamics

Nov 30 '17 at 22:17 hyportnex 314

9

votes

3

answers

226

views

Gibbs Free Energy and Equlibrium Constant

physical-chemistry

Jul 31 '17 at 22:11 Hans Jørgen Aa. Jensen 21

8

votes

1

answer

2k

views

Why do we use dG < 0 to describe a spontaneous process?

physical-chemistry thermodynamics

Oct 25 '15 at 0:10 Mark Leavenworth 1

7

votes

2

answers

38k

views

Strength of intramolecular vs intermolecular hydrogen bonds

physical-chemistry energy hydrogen-bond

Apr 5 '18 at 19:32 Archer 4,630

7

votes

2

answers

4k

views

Combining acid dissociation constants to determine pH of diprotic acid

acid-base equilibrium ph

May 28 '17 at 9:03 Community♦ 1

6

votes

1

answer

4k

views

Carbonyl oxygen as nucleophile

organic-chemistry reaction-mechanism carbonyl-compounds hsab

Mar 29 '18 at 4:05 Cserepes Lilla 1

5

votes

1

answer

404

views

Conceptualizing Multiple Equilibria

thermodynamics equilibrium

Apr 9 '14 at 6:51 mannaia 1,657

5

votes

1

answer

953

views

Does “covalent” AgCl (aq) exist and if so, how to quantify its concentration?

inorganic-chemistry

Feb 23 '15 at 19:51 ron 78.8k

4

votes

2

answers

5k

views

Is there intramolecular hydrogen bonding in salicylaldehyde?

organic-chemistry aromatic-compounds carbonyl-compounds hydrogen-bond

Apr 9 '18 at 7:23 Hemanth Hemu 1

4

votes

2

answers

3k

views

What is the dipole moment direction of an aliphatic amine, i.e., R-NH2?

dipole amines

Oct 16 '15 at 17:47 Jan 60.2k

4

votes

1

answer

1k

views

Determine reaction concentration at chemical equilibrium with multiple reactions

equilibrium concentration

Aug 1 '17 at 10:58 Ashoka23 71

4

votes

2

answers

2k

views

Relation between thermodynamic reversible process and reversible reaction

thermodynamics

Dec 3 '19 at 15:04 Community♦ 1

4

votes

2

answers

368

views

Determination of products in reactions involving carbocation rearrangement?

organic-chemistry reaction-mechanism reactivity

Oct 2 '15 at 16:39 Jan 60.2k

3

votes

2

answers

2k

views

Thermodynamic versus kinetic reactions

organic-chemistry terminology reaction-control

Mar 13 '16 at 13:14 iad22agp 8,813

3

votes

3

answers

283

views

If all chemical processes are equilibria at least to some extent, where does the activation energy come from?

equilibrium

Jun 20 '14 at 6:35 Mark 2,020

3

votes

1

answer

73

views

In a multi equilibrium system, how does change in one equilibrium affect the other?

physical-chemistry equilibrium gas-laws

Apr 26 '17 at 7:43 a-cyclohexane-molecule 4,479

2

votes

1

answer

259

views

What exactly does a “system” include in chemistry?

thermodynamics terminology

Jul 2 '17 at 20:52 Community♦ 1

2

votes

3

answers

1k

views

Spontaneous Reaction and Gibbs Free Energy

thermodynamics equilibrium free-energy

Jun 18 '16 at 9:28 Community♦ 1

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Ortho-effect in substituted aromatic acids and bases

Gibbs free energy-minimum or zero?

What is the difference between ∆G and ∆G°?

Rationalising the order of reactivity of carbonyl compounds towards nucleophiles

Why don't alkynes undergo preferential anti bromination to the degree that alkenes do?

Migratory aptitude in pinacol-pinacolone rearrangement

How is chemical energy stored in carbon

ATP break down and energy release?

What is the difference between ΔG and ΔrG?

Why is a ketone not capable of hydrogen bonding among themselves?

Most stable conformational isomer of 3-methoxycyclohexan-1-ol

Must a good leaving group be a weak base, or a weak nucleophile?

Is the equation dU= TdS - PdV always valid (even for irreversible processes?)

Gibbs Free Energy and Equlibrium Constant

Why do we use dG < 0 to describe a spontaneous process?

Strength of intramolecular vs intermolecular hydrogen bonds

Combining acid dissociation constants to determine pH of diprotic acid

Carbonyl oxygen as nucleophile

Conceptualizing Multiple Equilibria

Does “covalent” AgCl (aq) exist and if so, how to quantify its concentration?

Is there intramolecular hydrogen bonding in salicylaldehyde?

What is the dipole moment direction of an aliphatic amine, i.e., R-NH2?

Determine reaction concentration at chemical equilibrium with multiple reactions

Relation between thermodynamic reversible process and reversible reaction

Determination of products in reactions involving carbocation rearrangement?

Thermodynamic versus kinetic reactions

If all chemical processes are equilibria at least to some extent, where does the activation energy come from?

In a multi equilibrium system, how does change in one equilibrium affect the other?

What exactly does a “system” include in chemistry?

Spontaneous Reaction and Gibbs Free Energy