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mash [69]
3 years ago
12

An allergy medicine is usually stored in a cabinet at the room temperature where it’s molecules move around each other. By mista

ke an intern transferred energy into the medicine after one hour the turn found the Medicine and noticed that it was liquid how were move the molecules moving when the intern found the medicine explain why the molecules were moving this way after the intern transferred energy into the medicine
Chemistry
1 answer:
lina2011 [118]3 years ago
5 0
<h2>Answer:</h2>

The transferred energy by the energy will be converted into the kinetic energy of molecules. Which allow them to move more fastly then in solid.

<h3>Explanation:</h3>

In solid, molecule are moving but their motion is vibrational motion. They don't change their position. It means their kinetic energy is that much low to let them move freely.

But in case of liquid, molecules have much energy to move freely in the matter. Their bonds don't break, so the will be in liquid form.

This increase in kinetic energy is due to energy given by the internee.

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compare a humans changes during exercise to the changes that occur a during a dogs exercise when it is exposed to a hot environm
svetoff [14.1K]
A human body, just like a dog's, will sweat. Dogs will pants and sweat through the pads of their feet to cool down, and human will sweat through their foreheads, armpits, etc.
Dogs will tend to, in hot environments, lay on the floor or where the surface is cooler. Since they cannot simply strip their clothing to keep cool they tend to find cool surfaces, fans, sources of air, etc. to keep cool from the heat.
5 0
3 years ago
What does this mean: A saturated solution may be quite dilute because some substances have a very low solubility. I don't unders
atroni [7]

Answer:

Here's how I would explain it.

Explanation:

Think of it this way.

When you mix solutions of silver nitrate and sodium chloride, you get an immediate precipitate of silver chloride. The equation is

Ag⁺(aq) + Cl⁻(aq) ⟶ AgCl(s)

Now, take some AgCl and stir it vigorously with water.

You won't see much happening, because the AgCl is has such a low solubility. Not much of it will go into solution. And yet, a small amount of it does dissolve until the solution is saturated.

The concentration of AgCl in the saturated solution is

about 0.000 01 mol·L⁻¹.

I hope you will agree that this is a dilute solution even though it is saturated with AgCl.

8 0
4 years ago
The activation energy for proline isomerization of a peptide depends on the identity of the preceding residue and obeys Arrheniu
MAVERICK [17]

Answer:

Activation energy of phenylalanine-proline peptide is 66 kJ/mol.

Explanation:

According to Arrhenius equation-     k=Ae^{\frac{-E_{a}}{RT}}    , where k is rate constant, A is pre-exponential factor, E_{a} is activation energy, R is gas constant and T is temperature in kelvin scale.

As A is identical for both peptide therefore-

                                   \frac{k_{ala-pro}}{k_{phe-pro}}=e^\frac{[E_{a}^{phe-pro}-E_{a}^{ala-pro}]}{RT}

Here \frac{k_{ala-pro}}{k_{phe-pro}}=\frac{0.05}{0.005} , T = 298 K , R = 8.314 J/(mol.K) and E_{a}^{ala-pro}=60kJ/mol

So, \frac{0.05}{0.005}=e^{\frac{[E_{a}^{phe-pro}-(60000J/mol)]}{8.314J.mol^{-1}.K^{-1}\times 298K}}

   \Rightarrow E_{a}^{phe-pro}=65705J/mol=66kJ/mol (rounded off to two significant digit)

So, activation energy of phenylalanine-proline peptide is 66 kJ/mol

7 0
3 years ago
The Red Sea is widening at a rate of 1.25 centimeters per year. How many years will it take to widen another 812.5 centimeters?
Alla [95]

The correct answer is - B) 650.

The Red Sea is a sea that grows in size because it is widening all the time. The rate of the widening is 1.25 centimeters per year, so it is not something that can be easily seen during a normal human lifespan, but over a longer period of time it will have a much different shape, size, and influence in the region. It is located between the African and the Arabian tectonic plates as an elongated thin sea with a northwest-southeast direction.

The widening of the Red Sea is due to the movement of the tectonic plates. Africa is moving towards northwest, and that makes it slowly distance itself from the Arabian plate, thus opening more space for the Red Sea.

In order for the Red Sea to widen another 812.5 centimeters, will be required 650 years, and we can come to the result by simple dividing the required number of the width with the annual widening.

812.5 / 1.25 = 650.

7 0
3 years ago
Read 2 more answers
Put the basic steps of pyruvate oxidation in order.
Lunna [17]

Answer:

1. carboxyl group is removed from pyruvate and releases 1 co2 molecule and leaves 2 carbon molecules

2. 2-carbon molecule is oxidized and electrons lost in oxidation are picked up by nad+ to form Ndah

3. oxidized 2 carbon molecule is attached to coenzyme a to form ACETYL COA

Explanation:

5 0
2 years ago
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