Answer:
28 years
Explanation:
the information is literally in the question.
The equilibrium constant expression for this reaction is ![K_{eq} = \frac{[HOCl]^{2}}{[Cl_{2}]^{2}}](https://tex.z-dn.net/?f=K_%7Beq%7D%20%3D%20%5Cfrac%7B%5BHOCl%5D%5E%7B2%7D%7D%7B%5BCl_%7B2%7D%5D%5E%7B2%7D%7D)
. This is an example of a heterogeneous equilibrium wherein the states of the reactants and products are different. In such a case, only the concentration of the gaseous and aqueous substances are included in the equilibrium constant expression.
Further Explanation:
The equilibrium constant expression is the ratio of the concentration of the products and the concentration of reactants.
The guidelines in writing the equilibrium constant expressions are as follows:
- Write molar concentration of each product in the numerator of the Keq expression.
- Write the coefficient of the substance as the exponent of the molar concentration of the substance in the Keq expression.
- Write the molar concentration of each reactant raised to its coefficient in the denominator.
Note: Pure substances (i.e. solids and liquids) are not included in the equilibrium constant expression as their concentrations are constant.
The numerical equivalent of the Keq expression is called the equilibrium constant. It has a specific value for a given temperature. The equilibrium constant provides information about the spontaneity and progress of an equilibrium reaction.
Learn More
- Learn more about equilibrium constants brainly.com/question/4137132
- Learn more about Le Chatelier's Principle brainly.com/question/12983923
- Learn more about Gibbs Free Energy brainly.com/question/12979420
Keywords: equilibrium constant expression, equilibrium
The half-life of Plutonium−239, t1/2 is 2.41 × 10⁴<span> yrs
time taken to reach tolerable level = seven half-lives
= 7 x t1/2
= 7 x </span>2.41 × 10⁴ yrs
= 168700 yrs
= 1.687 x 10⁵ yrs
Hence, the period of time that <span>Plutonium-239 must be stored is </span>1.687 x 10⁵ years.
Answer:
See explanation
Explanation:
Specific activity of an enzyme is defined as a measure of the rate of reaction between enzyme and substrate.
In the study of enzyme kinetics, specific activity is particularly regarded to be the amount of substrate converted by the enzyme per milligram of protein per unit of time. It is thus a reliable measure of enzyme activity per milligram of total protein.
On the other hand, the turnover number is defined as a measure of the number of conversions achieved by a substrate molecule in one second at a particular active site depending on the specific enzyme concentration.
Since specific activityof the enzyme is the ratio of the enzyme activity to enzyme concentration, then specific activity can be used as a measurement of enzyme purity.
Besides building teeth and bones, calcium also keeps your blood and muscles moving and helps your nerves send messages from your brain to the rest of your body. Your body can't make calcium, so you need to get it from food or supplements. While you're pregnant, try to get at least 1,000 mg of calcium every day.
