What is the heat of formation of H2SO4?
What is the heat of formation of H2SO4?
Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.)
| ΔfH°gas (kJ/mol) | -735.13 |
| Method | Review |
| Reference | Chase, 1998 |
| Comment | |
|---|---|
| Data last reviewed in September, 1977 |
What is the formation reaction of H2SO4?
H2SO4 (l) H2O (g) + SO3 (g). The reverse reaction is how to make sulfuric acid.
Is formation of H2SO4 exothermic?
The hydration reaction of sulfuric acid is highly exothermic. The reaction is best thought of as forming hydronium ions, by: H2SO4 + H2O → H3O+ + HSO.
What is the heat capacity of H2SO4?
ENDMEMO
| Compound Name: | Sulfuric Acid |
|---|---|
| Formula: | H2SO4 |
| Specific Heat: | 1.34 J.g-1K-1 |
How do you make sulfuric acid from sulphur?
Sulphuric acid by contact process
- Step 1: Make sulphur dioxide.
- Step 2: Convert sulphur dioxide into sulphur trioxide (the reversible reaction at the heart of the process)
- Step 3: Convert sulphur trioxide into concentrated sulphuric acid.
Does h2so4 oxidize?
Sulfuric acid is not typically regarded as an oxidizing acid because of the stability of the sulfate ion. However, in the presence of sulfur atoms with a lower oxidation state, such as those in sulfides, sulfate can be reduced.
Why h2so4 is highly viscous?
Sulphuric acid is highly viscous in nature because its molecules are associated with hydrogen bonding. It is a highly corrosive chemical. It is also used as a sulphonating agent in organic reactions.
What happens when h2so4 reacts with water?
Sulfuric acid (H2SO4) reacts very vigorously with water in a highly exothermic reaction. If you add water to concentrated sulfuric acid, it can boil and spit and you may get a nasty acid burn.
What is the specific heat of sulfur?
0.732
Specific Heats (Csp)
| Substance | Formula | Csp (J/goC) |
|---|---|---|
| Silicon | Si | 0.703 |
| Silver | Ag | 0.237 |
| Sulfur | S | 0.732 |
| Tin | Sn | 0.213 |
What are the common uses of sulfuric acid?
Sulfuric acid is an incredibly corrosive acid form of sulfur. It is used in a wide variety of industrial processes, from byproducts of large-scale mining operations to bleaching flour to fruit and vegetable preservation. It is also a common ingredient in many household products, especially cleaning products.
What are the hazards of concentrated sulfuric acid?
Chemical Stability: Normally stable.
What are the uses of sulphuric acid?
Sulphuric acid is used in the processing of iron, copper and steel to clean the metal and prevent oxidation before it is plated with tin or zinc. This is known as ‘pickling’. Two examples of using sulphuric acid in this way are to make cans for food and to supply the correct metal for sale to the automotive industry.
How is sulfuric acid both a result and cause?
Sulfuric acid is a very powerful dehydrating agent and a great deal of heat is released when the concentrated acid comes into contact with water. If water is added to an excess of the acid, the heat produced causes the water to boil immediately, which may result in the acid being sprayed over a wide area.
