Ask question

Ask question

All categories

Dmitry_Shevchenko [17]

2 years ago

14

What is the outcome of hotspots? Question 13 options: Formation of islands Constant volcanic eruptions Divergent boundary intera

ction Convergent boundary interaction.

1 answer:

miss Akunina [59]2 years ago

6 0

Answer:

Constant volcanic eruptions Hope this helps!

You might be interested in

Why does sound travel faster in warm air

xz_007 [3.2K]

Answer:

Warm or hot air particles have more energy than that of cool air. As a result they move faster than cool air particles. Since sound propogation involves movement or vibration of particles, sound travels faster in warm air

Hope this helps!

6 0

3 years ago

Read 2 more answers

Please someone help me to solve this problem

Zinaida [17]

Answer:

(a) The final pressure of the sample becomes one-fourth of the original pressure.

(b) The pressure of the sample remains unchanged.

(c) The final pressure of the sample becomes four times of the original pressure.

Explanation:

(a)

$P_{2}=\frac{P_{1}V_{1}T_{2}}{T_{1}V_{2}}$

The volume of sample doubled and kelvin temperature halved.

$V_{2}=2V_{1}$

$T_{2}=\frac{1}{2}T_{1}$

$P_{2}=\frac{P_{1}\times V_{1}\times \frac{1}{2}T_{1}}{T_{1}\times2V_{1}}=\frac{P_{1}}{4}$

Therefore, the final pressure of the sample becomes one-fourth of the original pressure.

(b)

Volume and temperature of sample doubled.

$V_{2}=2V_{1}$

$T_{2}=2T_{1}$

$P_{2}=\frac{P_{1}\times V_{1}\times 2T_{1}}{T_{1}\times2V_{1}}={P_{1}}$

Therefore, the pressure of the sample unchanged.

(c)

Volume of sample halved and temperature double.

$V_{2}=\frac{1}{2}V_{1}$

$T_{2}=2T_{1}$

$P_{2}=\frac{P_{1}\times V_{1}\times 2T_{1}}{T_{1}\times \frac{1}{2}V_{1}}={4P_{1}}$

Therefore, the pressure of the sample becomes four times of the original pressure.

6 0

3 years ago

A certain reaction has an activation energy of 51.64 kj/mol. At what temperature Kelvin will the reaction be 5.50 times faster t

pishuonlain [190]

For this, we use the Arrhenius equation to solve the problem. It is expressed as:
k = Ae^-(E/RT)

where k is the reaction rate, A is the pre-exponential factor, E is the activation energy and T is the temperature.

For a reaction, A is constant at different temperatures. We then isolate the constant and then introduce the second condition to the equation since it will still be equal to the constant. It is then simplified to:

ln(k2/k1) = -E/R (1/T2 - 1/T1)
ln(5.50k1/k1) = -51.64/8.314 (1/T2 - 1/343)
T2 = 379 K

3 0

3 years ago

How many neutrons are in Uranium-242?

qaws [65]

There are 150 neutrons in Uranium-242

5 0

3 years ago

Rocks are grouped according to

MissTica

<h2>Rocks are grouped according to their formation into three major groups – igneous, sedimentary, and metamorphic rocks </h2>

Explanation:

Based on their formation, rocks are further sub-grouped as:

Igneous - Intrusive or extrusive
Sedimentary – Clastic, chemical, or biologic rocks
Metamorphic - Foliated and non-foliated

Rocks are also grouped based on their properties like size, shape, texture, chemical composition, permeability, mineralogy, etc.

Based on properties rocks are sub-grouped as:

Igneous rocks – coarse or fine-grained; glassy or obsidian; felsic or mafic.
Sedimentary rocks - conglomerate, sandstone, breccia, shale, siltstone, chalk, crystalline or fossiliferous limestone, gypsum, rock salt etc.
Metamorphic rocks - Gneiss, hornfels, mylonites, cataclasties, marble, etc.

8 0

3 years ago