NH4SCN + 3H2O ๐งโกโ NH4NO3 + S + CH4โ + H2โ
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- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agent
Electrolysis of aqueous ammonium thiocyanate yields ammonium nitrate, , , and (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agent
General equation
- Electrolysis of aqueous solution with water as non redox agent
- Miscible with water/Very soluble in water/Soluble in waterSelf redox agent + H2ONon-redox agent๐งโกโถ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agent
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
NH4SCN | Ammonium thiocyanate | 1 | Self redox agent | Very soluble in water |
H2O | Water | 3 | โ | Water |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
NH4NO3 | Ammonium nitrate | 1 | Oxidized | โ |
1 | Oxidized | โ | ||
1 | Reduced | โ | ||
1 | โ | โ |
Thermodynamic changes
Changes in standard condition (1)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agent
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 495.8 | โ | โ | โ |
per 1 mol of | 495.8 | โ | โ | โ |
per 1 mol of | 165.3 | โ | โ | โ |
per 1 mol of | 495.8 | โ | โ | โ |
495.8 | โ | โ | โ | |
495.8 | โ | โ | โ | |
495.8 | โ | โ | โ |
Changes in standard condition (2)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agent
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 496.2 | โ | โ | โ |
per 1 mol of | 496.2 | โ | โ | โ |
per 1 mol of | 165.4 | โ | โ | โ |
per 1 mol of | 496.2 | โ | โ | โ |
496.2 | โ | โ | โ | |
496.2 | โ | โ | โ | |
496.2 | โ | โ | โ |
Changes in aqueous solution (1)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agentโ
ฮrG 456.71 kJ/mol K 0.97 ร 10โ80 pK 80.01
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 498.88 | 456.71 | 141.1 | โ185.5 |
per 1 mol of | 498.88 | 456.71 | 141.1 | โ185.5 |
per 1 mol of | 166.29 | 152.24 | 47.03 | โ61.83 |
per 1 mol of | 498.88 | 456.71 | 141.1 | โ185.5 |
498.88 | 456.71 | 141.1 | โ185.5 | |
498.88 | 456.71 | 141.1 | โ185.5 | |
498.88 | 456.71 | 141.1 | โ185.5 |
Changes in aqueous solution (2)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agentโ
ฮrG 474.3 kJ/mol K 0.81 ร 10โ83 pK 83.09
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 494.7 | 474.3 | 587 | โ |
per 1 mol of | 494.7 | 474.3 | 587 | โ |
per 1 mol of | 164.9 | 158.1 | 196 | โ |
per 1 mol of | 494.7 | 474.3 | 587 | โ |
494.7 | 474.3 | 587 | โ | |
494.7 | 474.3 | 587 | โ | |
494.7 | 474.3 | 587 | โ |
Changes in aqueous solution (3)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agentโ
ฮrG 473.10 kJ/mol K 0.13 ร 10โ82 pK 82.88
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 484.65 | 473.10 | 38.6 | โ |
per 1 mol of | 484.65 | 473.10 | 38.6 | โ |
per 1 mol of | 161.55 | 157.70 | 12.9 | โ |
per 1 mol of | 484.65 | 473.10 | 38.6 | โ |
484.65 | 473.10 | 38.6 | โ | |
484.65 | 473.10 | 38.6 | โ | |
484.65 | 473.10 | 38.6 | โ |
Changes in aqueous solution (4)
- Electrolysis of aqueous ammonium thiocyanate with water as non-redox agentโ
ฮrG 490.7 kJ/mol K 0.11 ร 10โ85 pK 85.97
Standard enthalpy of reaction ฮrHยฐ kJ ยท molโ1 | Standard Gibbs energy of reaction ฮrGยฐ kJ ยท molโ1 | Standard entropy of reaction ฮrSยฐ J ยท Kโ1 ยท molโ1 | Standard heat capacity of reaction at constant pressure ฮrCpยฐ J ยท Kโ1 ยท molโ1 | |
---|---|---|---|---|
per 1 mol of Equation | 480.5 | 490.7 | 485 | โ |
per 1 mol of | 480.5 | 490.7 | 485 | โ |
per 1 mol of | 160.2 | 163.6 | 162 | โ |
per 1 mol of | 480.5 | 490.7 | 485 | โ |
480.5 | 490.7 | 485 | โ | |
480.5 | 490.7 | 485 | โ | |
480.5 | 490.7 | 485 | โ |
Thermodynamic data of reactants
Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
NH4SCN (cr) | -78.7[1] | โ | โ | โ |
NH4SCN (ai) | -56.07[1] | 13.40[1] | 257.7[1] | 39.7[1] |
H2O (cr) | โ | โ | โ | โ |
H2O (l) | -285.830[1] | -237.129[1] | 69.91[1] | 75.291[1] |
H2O (g) | -241.818[1] | -228.572[1] | 188.825[1] | 33.577[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (l):Liquid, (g):Gas
Thermodynamic data of products
Chemical formula | Standard enthalpy of formation ฮfHยฐ kJ ยท molโ1 | Standard Gibbs energy of formation ฮfGยฐ kJ ยท molโ1 | Standard molar entropy Sยฐ J ยท Kโ1 ยท molโ1 | Standard molar heat capacity at constant pressure Cpยฐ J ยท Kโ1 ยท molโ1 |
---|---|---|---|---|
NH4NO3 (cr) | -365.56[1] | -183.87[1] | 151.08[1] | 139.3[1] |
NH4NO3 (ai) | -339.87[1] | -190.56[1] | 259.8[1] | -6.7[1] |
(cr) rhombic | 0[1] | 0[1] | 31.80[1] | 22.64[1] |
(cr) monoclinic | 0.33[1] | โ | โ | โ |
(g) | 278.805[1] | 238.250[1] | 167.821[1] | 23.673[1] |
(g) | -74.81[1] | -50.72[1] | 186.264[1] | 35.309[1] |
(ao) | -89.04[1] | -34.33[1] | 83.7[1] | โ |
(g) | 0[1] | 0[1] | 130.684[1] | 28.824[1] |
(ao) | -4.2[1] | 17.6[1] | 577[1] | โ |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-ionized aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ฮfHยฐ, -78.7 kJ ยท molโ1
- ^ ฮfHยฐ, -56.07 kJ ยท molโ1
- ^ ฮfGยฐ, 13.40 kJ ยท molโ1
- ^ Sยฐ, 257.7 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 39.7 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -285.830 kJ ยท molโ1
- ^ ฮfGยฐ, -237.129 kJ ยท molโ1
- ^ Sยฐ, 69.91 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 75.291 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -241.818 kJ ยท molโ1
- ^ ฮfGยฐ, -228.572 kJ ยท molโ1
- ^ Sยฐ, 188.825 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 33.577 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -365.56 kJ ยท molโ1
- ^ ฮfGยฐ, -183.87 kJ ยท molโ1
- ^ Sยฐ, 151.08 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 139.3 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -339.87 kJ ยท molโ1
- ^ ฮfGยฐ, -190.56 kJ ยท molโ1
- ^ Sยฐ, 259.8 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, -6.7 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 0 kJ ยท molโ1
- ^ ฮfGยฐ, 0 kJ ยท molโ1
- ^ Sยฐ, 31.80 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 22.64 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 0.33 kJ ยท molโ1
- ^ ฮfHยฐ, 278.805 kJ ยท molโ1
- ^ ฮfGยฐ, 238.250 kJ ยท molโ1
- ^ Sยฐ, 167.821 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 23.673 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -74.81 kJ ยท molโ1
- ^ ฮfGยฐ, -50.72 kJ ยท molโ1
- ^ Sยฐ, 186.264 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 35.309 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -89.04 kJ ยท molโ1
- ^ ฮfGยฐ, -34.33 kJ ยท molโ1
- ^ Sยฐ, 83.7 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, 0 kJ ยท molโ1
- ^ ฮfGยฐ, 0 kJ ยท molโ1
- ^ Sยฐ, 130.684 J ยท Kโ1 ยท molโ1
- ^ Cpยฐ, 28.824 J ยท Kโ1 ยท molโ1
- ^ ฮfHยฐ, -4.2 kJ ยท molโ1
- ^ ฮfGยฐ, 17.6 kJ ยท molโ1
- ^ Sยฐ, 577 J ยท Kโ1 ยท molโ1