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Solnce55 [7]
2 years ago
14

On a warm summer day, a group of friends went swimming at the pool. They experienced hot, humid air at noon; but a few hours lat

er the temperature dropped, and a thunderstorm occurred. Which explanation below BEST describes what caused this event?
Chemistry
1 answer:
Nadya [2.5K]2 years ago
6 0

Answer:

hello dear, the question that you posted is incomplete but not to worry I will give you some key points in order to be able to answer this kind of question.

Explanation:

So, since we do not have the complete question, let us proceed this way; we are given that the season is a warm SUMMER day and the atmospheric condition or the weather is HOT, HUMID at noon but later in some few hours the TEMPERATURE DROPPED and then, a thunderstorm occurred.

(1). The fact that the weather is in a humid condition that is relative humidity will make it possible to absorb more moisture.

(2). Also, we have a HOT weather which means that the rate at which EVAPORATION take place is high.

(3). The drop in temperature means that water molecule has been absorb from the surface of the earth which also includes the water molecules that would have adhere to their bodies. The air expands and move up and as the air move up they become colder and later condensed and this is the cause of the THUNDERSTORM -- a conventional rainfall.

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The first ionization energy, e, of a potassium atom is 0.696 aj. what is the wavelength of light, in nm, that is just sufficient
elena55 [62]
The formula to be used for this problem is as follows:

E = hc/λ, where h is the Planck's constant, c is the speed of light and λ is the wavelength. Also 1 aJ = 10⁻¹⁸ J

0.696×10⁻¹⁸ = (6.62607004×10⁻³⁴ m²·kg/s)(3×10⁸ m/s)/λ
Solving for λ,
λ = 2.656×10⁻⁷ m or <em>0.022656 nm</em>
6 0
1 year ago
Two nonpolar organic liquids, hexane (C6H14) and heptane (C7H16), are mixed. Do you expect ΔHsoln to be a large positive number,
Aliun [14]

Answer:

ΔH of solution is expected to be close to zero.

Explanation:

When we mix two non polar organic liquids like hexane and heptane,the resulting mixture formed is an ideal solution.An ideal solution is formed when the force of attraction between the molecules of the two liquids is equal to the force of attraction between the molecules of the same type.

For instance if liquids A and B are mixed,

F_{A-A} = F_{B-B} = F_{A-B}

Hence the condition before and after mixing remains unchanged.

Since enthalpy change is associated with inter molecular force of attraction the enthalpy change for ideal solution is zero.

More examples of ideal solutions are:

1. Ethanol and Methanol

2. Benzene and Toluene

3. Ethyl bromide and Ethyl iodide

5 0
1 year ago
Much to everyone’s surprise, nitrogen monoxide (NO) has been found to act as a neurotransmitter. To prepare to study its effect,
SVEN [57.7K]

Answer: 0.0043mole

Explanation:Please see attachment for explanation

3 0
2 years ago
A sample of gas occupies 10 L at STP. What
puteri [66]

Pressure is 5.7 atm

<u>Explanation:</u>

P1 = Standard pressure = 1 atm

P2 = ?  

V1 = Volume = 10L

V2= 2.4L

T1 = 0°C + 273 K = 273 K

T2 = 100°C + 273 K = 373 K

We have to find the pressure of the gas, by using the gas formula as,

$\frac{P 1 V 1}{T 1}=\frac{P 2 V 2}{T 2}

P2 can be found by rewriting the above expression as,

$P 2=\frac{P 1 \times V 1 \times T 2}{T 1 \times V 2}

Plugin the above values as,

$P 2=\frac{1 \text {atm} \times 10 L \times 373 \mathrm{K}}{273 \mathrm{K} \times 2.4 \mathrm{L}}=5.7 \text { atm }

4 0
2 years ago
A sample of neon gas at STP is allowed to expand into an evacuated vessel. What is the sign of work for this process?
vesna_86 [32]

<u>Answer:</u>

<em>The sign of work for this process will be Negative.</em>

<em></em>

<u>Explanation:</u>

Work done by the system on the surroundings is negative

So,  If work is done on the system, its sign is positive. If work is done by the system, its sign is negative

Here we see the system that is argon gas is expanding and the work is done by the system into the surroundings (vessel) and the sign is Negative

Therefore, the sign of work for this process will be Negative.

3 0
2 years ago
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