From Kinetics to Equilibrium
... acing cars can reach speeds that are well above 200 km/h. In contrast, the maximum speed of many farm tractors is only about 25 km/h. Just as some vehicles travel more quickly than others, some chemical reactions occur more quickly than others. For example, compare the two reactions that occur in ve ...
... acing cars can reach speeds that are well above 200 km/h. In contrast, the maximum speed of many farm tractors is only about 25 km/h. Just as some vehicles travel more quickly than others, some chemical reactions occur more quickly than others. For example, compare the two reactions that occur in ve ...
Enzyme Activity
... • Active site: The region of an enzyme molecule which binds the substrate and carries out the catalytic reaction • Enzyme : A biological catalyst. Usually a globular protein molecule produced by living organisms that can speed up a specific chemical reaction without itself being destroyed or changed ...
... • Active site: The region of an enzyme molecule which binds the substrate and carries out the catalytic reaction • Enzyme : A biological catalyst. Usually a globular protein molecule produced by living organisms that can speed up a specific chemical reaction without itself being destroyed or changed ...
Determination of the diffusion coefficient of sucrose in water and its
... k is the Boltzmann constant and T is the absolute temperature. There are several important assumptions implicit in equation (17). Two of these are that the solute is spherical, and considerably larger than the solvent molecules. Deviations from spherical geometry (such as oblate or prolate ellipsoid ...
... k is the Boltzmann constant and T is the absolute temperature. There are several important assumptions implicit in equation (17). Two of these are that the solute is spherical, and considerably larger than the solvent molecules. Deviations from spherical geometry (such as oblate or prolate ellipsoid ...
Role of Chemical Reaction Engineering in Sustainable
... employment of fixed bed catalytic reactors. The reactors are expensive and only up to 2 % n-butane can be used in the feed4. Yield is around 50 % with 70-85 % conversion and 67-75 % molar selectivity to maleic anhydride4. ...
... employment of fixed bed catalytic reactors. The reactors are expensive and only up to 2 % n-butane can be used in the feed4. Yield is around 50 % with 70-85 % conversion and 67-75 % molar selectivity to maleic anhydride4. ...
Solution Stoichiometry - Angelo State University
... strong electrolytes (soluble ionic compounds and strong acids) are written as ions (e.g., Na+, Cl-) • Insoluble precipitates, weak electrolytes, and molecules are left intact. • Ions that are not involved in the actual chemical change are called spectator ions. – Net ionic equation: shows only the i ...
... strong electrolytes (soluble ionic compounds and strong acids) are written as ions (e.g., Na+, Cl-) • Insoluble precipitates, weak electrolytes, and molecules are left intact. • Ions that are not involved in the actual chemical change are called spectator ions. – Net ionic equation: shows only the i ...
IChO 35 Theoretical Exam
... B J (J+1), where J is the rotational quantum number of the molecule and B its rotational constant. B is related to the reduced mass μ and the bond length R of the h2 molecule through the equation B 2 2 . 8 R In general, spectroscopic transitions appear at photon energies which are equal to the e ...
... B J (J+1), where J is the rotational quantum number of the molecule and B its rotational constant. B is related to the reduced mass μ and the bond length R of the h2 molecule through the equation B 2 2 . 8 R In general, spectroscopic transitions appear at photon energies which are equal to the e ...
Document
... magnitude of ΔH remains the same, but its sign changes. 2. When the balanced equation for a reaction is multiplied by an integer, the value of ΔH for that reaction must be multiplied by the same integer. ...
... magnitude of ΔH remains the same, but its sign changes. 2. When the balanced equation for a reaction is multiplied by an integer, the value of ΔH for that reaction must be multiplied by the same integer. ...
im11
... 13. A base is defined as a substance that increases the concentration of the hydroxide ion in solution. Characteristics of a base include its bitter taste, its slimy feel, and its ability to turn litmus paper blue. 14. When a strong acid such as HCl ionizes, the hydrogen atom loses its half-share o ...
... 13. A base is defined as a substance that increases the concentration of the hydroxide ion in solution. Characteristics of a base include its bitter taste, its slimy feel, and its ability to turn litmus paper blue. 14. When a strong acid such as HCl ionizes, the hydrogen atom loses its half-share o ...
Examination - SCSA - School Curriculum and Standards Authority
... equation. N2(g) + 3 H2(g) ⇌ 2 NH3(g) ∆H = - 92 kJ mol–1 As they exist in the gaseous state, the relative concentrations can be given in terms of the partial pressure (kPa) of each gas. Nitrogen, hydrogen and ammonia gases are placed in a rigid container and allowed to reach equ ...
... equation. N2(g) + 3 H2(g) ⇌ 2 NH3(g) ∆H = - 92 kJ mol–1 As they exist in the gaseous state, the relative concentrations can be given in terms of the partial pressure (kPa) of each gas. Nitrogen, hydrogen and ammonia gases are placed in a rigid container and allowed to reach equ ...
Chemical Thermodynamics presentation 1
... Because ΔG° is positive, the reaction is not spontaneous under standard conditions at 298 K. Note: We had to convert the units of the T ΔS term to kJ sp that it could be added to the ΔH term whose units are kJ ...
... Because ΔG° is positive, the reaction is not spontaneous under standard conditions at 298 K. Note: We had to convert the units of the T ΔS term to kJ sp that it could be added to the ΔH term whose units are kJ ...
chemical reactions
... Ba(NO3)2 , are combined an insoluble salt barium chromate, BaCrO4 , is formed. K2CrO4 (aq) + Ba(NO3)2 (aq) BaCrO4 (s) + 2KNO3 (aq) Precipitate These reactions will be further discussed in Chapter 8 ...
... Ba(NO3)2 , are combined an insoluble salt barium chromate, BaCrO4 , is formed. K2CrO4 (aq) + Ba(NO3)2 (aq) BaCrO4 (s) + 2KNO3 (aq) Precipitate These reactions will be further discussed in Chapter 8 ...
Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not zero, but equal. Thus, there are no net changes in the concentrations of the reactant(s) and product(s). Such a state is known as dynamic equilibrium.