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# Can arrhenius constant be negative?

The rate constant k should always be positive. From the Arrhenius equation, we know that k = A x exp(-Ea/RT). « A » (frequency factor) will always be positive because (according to google) **No experimental case where A is negative**And mathematically exp(-Ea/RT) can never be negative.

## What does it mean if the rate constant is negative?

**If the concentration of the reactant is measured, it will decrease over time** So the ratio will be recorded as a negative number (if the product is measured, the ratio will be positive). Grandson N.

## Can there be negative activation energy?

One **Basic reactions cannot have negative activation energies**: It must be zero or a positive number. However, reaction mechanisms consisting of several steps may have negative activation energies. …even for elementary reactions, negative activation energies are possible.

## Is the reaction rate constant positive or negative?

The unit of reaction rate so defined is mol/L/s. **The reaction rate is always positive**. A negative sign appears to indicate that the concentration of the reactant is decreasing. IUPAC recommends that the time unit should always be seconds.

## What does the Arrhenius constant represent?

influences. The exponential term in the Arrhenius equation means that **The rate constant of the reaction increases exponentially as the activation energy decreases**. Because the rate of a reaction is proportional to the rate constant of the reaction, the rate also increases exponentially.

## Arrhenius Equation Activation Energy and Rate Constant K Interpretation

**35 related questions found**

## What is Arrhenius Behavior?

Exhibiting Arrhenius behavior means **A plot of lnk versus 1/T for the reaction gives a straight line** (lnk on y, 1/T on x). Since the slope of the Arrhenius plot is proportional to the activation energy, the higher the activation energy, the stronger the temperature dependence of the rate constant.

## Does the Arrhenius constant depend on solubility?

The parabolic coefficient K is usually described as a function of temperature T by the Arrhenius equation of K ¼ K0 exp(-QK=RTЮ), where R is the gas constant. … 1) For such line compounds, **Solubility range is constant regardless of temperature**.

## Can interest rates be negative?

negative interest rates **When the interest percentage on the account falls below zero**. A bank account balance with a positive interest rate (above 0%) grows as the bank pays interest. But with negative interest rates, banks can actually charge interest and reduce balances.

## Can a reaction have a negative equilibrium constant?

1: Equilibrium constant Kc is a constant that indicates how far the reaction will proceed at a given temperature. … when much less than 1 (Kc **can never be negative**…so when it’s close to zero) the reaction hardly happens.

## Is the reaction order negative?

The order of the reaction can be zero – in a zero-order reaction, the concentration/sec of the reactants does not affect the reaction rate.The reaction sequence can be **negative integer** – Negative integer values for reaction order indicate the effect of reactant concentration on the reaction rate.

## Is the activation energy negative or zero?

Although the energy change caused by the reaction can be **Positive, negative or even zero**, in both cases the energy barrier must be resolved before the reaction can occur. This means that the activation energy is still positive.

## Why can’t a reaction have a negative activation energy?

No, negative activation energies are not possible in simple reactions like isomerization **Because there is no possible way to draw a potential energy curve to give** negative activation energy.

## What if the activation energy is negative?

Negative activation energy means **By increasing the temperature, the rate decreases**. However, this is contrary to Arrhenhius’ assumption. If the reaction rate decreases with temperature, it means it is reversible, which should be demonstrated by two reaction paths, each with a positive activation energy.

## What are the 5 factors that affect reaction speed?

We can identify five factors that affect the rate of chemical reactions: **chemical properties of reactants**the subdivided state of the reactants (one large block versus many small particles), the temperature of the reactants, the concentration of the reactants and the presence of catalyst.

## What does the response rate tell you?

The reaction rate is **Measurement of change in concentration of reactant disappearing** Or the change in the appearance concentration of the product per unit time.

## What is a rate constant?

The rate constant or specific rate constant is **The proportionality constant in an equation that expresses the relationship between the rate of a chemical reaction and the concentration of the reacting species**.

## What factors do not affect the balance?

back **Add inert gas and keep volume constant**, has no effect on the balance. This is because at constant volume, the addition of inert gas does not change the partial pressure or molarity.

## What does negative delta G mean?

A negative ΔG means that **Reactants or initial states have more free energy than products or final states**. Exergonic reactions are also called spontaneous reactions because they can occur without increased energy.

## Can the equilibrium constant be zero?

**Equilibrium constant cannot be 0**. This is because it means that the concentration of the product is equal to 0 at equilibrium.

## What if interest rates are negative?

Turning interest rates into negative territory would be unprecedented in this country.this means **Interest rates fall below zero** – So, in theory, a bank or building society might charge depositors, while mortgage customers would actually have interest paid by their lender.

## Which country has negative interest rates?

Therefore, banks implement negative interest rates on customer deposits, allowing customers to deposit in the bank, encouraging consumption and discouraging savings. euro area, **Switzerland, Denmark, Sweden and Japan** Allow interest rates to fall below zero.

## Is zero interest rate good or bad?

« **There are real costs to keeping interest rates at zero** For a long time,” Dallas Fed President Robert Kaplan said in a recent speech. “Keeping interest rates at zero adversely affects savers, encourages excessive risk-taking and creates distortions in financial markets. «

## Does the Arrhenius constant have units?

The unit of the gas constant R is **Energy (kJ/mol) per Kelvin (K) per mole**. The temperature T is in Kelvin, which is 273.15 + °C. Table 1.2 shows some of the data used in the Arrhenius equation. There are similar Arrhenius equations to model diffusion and solubility coefficients.

## Does the Arrhenius constant vary with temperature?

(2) The proportion of collisions that occur in the correct orientation.Temperature dependence of the rate constant: increasing the reaction temperature generally speeds up the process (increasing the rate) because the rate **Increasing** According to the Arrhenius equation.

## What is A in the Arrhenius equation?

In the Arrhenius equation, k is the reaction rate constant, A **Indicates the frequency of atomic and molecular collisions** In the way that leads to the reaction, E is the activation energy of the reaction, R is the ideal gas constant (8.314 joules per mole per Kelvin), and T is the absolute temperature.