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S_A_V [24]
3 years ago
5

In an endothermic reaction, heat is absorbed from the surroundings. How does this affect entropy?

Chemistry
2 answers:
stealth61 [152]3 years ago
5 0

Answer:

D. The particles in the surroundings move slower and have decreased entropy.

Explanation:

Educere/Founder's Education answer

balandron [24]3 years ago
4 0

Answer: -

Thus the entropy of the particles in the surroundings move slower and have decreased entropy.

Explanation: -

In an endothermic reaction, heat is absorbed from the surroundings.

So the particles in the surroundings lose energy to the system during an endothermic reaction.

Due to a loss in their kinetic energy, the particles move slower.

Thus the entropy of the particles in the surroundings move slower and have decreased entropy.

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What is an example of an organ A.pancreas B.blood C.insulin D.knee
marissa [1.9K]

Answer: pancreas

Explanation:

4 0
3 years ago
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Calculate the number of moles present in 9.50g of co2
pshichka [43]

Answer:

0.4318 mol

Explanation:

Moles= mass/ mollar mass

Moles= 9.50/22

Moles= 0.4318 mol

3 0
4 years ago
ΚΕ:<br> m.22<br> 2<br> What is the kinetic energy of 10kg dog running with a velocity of 12m/s?
BigorU [14]

Answer:

The answer is

<h2>720 Joules</h2>

Explanation:

The kinetic energy of a body can be found by using the formula

<h3>K.E =  \frac{1}{2}  {mv}^{2}</h3>

where

m is the mass

v is the velocity / speed

From the question

mass = 10 kg

velocity = 12 m/s

Substitute the values into the above formula and solve

That's

<h3>KE =  \frac{1}{2}  \times 10 \times  {12}^{2}  \\   = 5 \times 144  \:  \:</h3>

We have the final answer as

<h3>720 Joules</h3>

Hope this helps you

3 0
3 years ago
The density of H2O2 is 1.407 g/mL, and the density of O2 is 1.428 g/L. How many liters of O2 can be made from 55 mL H2O2
balandron [24]

Explanation:

mass H2O2 = 55 mL(1.407 g/mL) = 80.85 g

molar mass H2O2 = 2(1.01 g/mol) + 2(16.00 g/mol) = 34.02 g/mol

moles H2O2 = 80.85 g/34.02 g/mol = 2.377 moles H2O2

For each mole of H2O2 you obtain 0.5 mole of O2 (see the equation).

moles O2 = 2.377 moles H2O2 (1 mole O2)/(2 moles H2O2) = 1.188 moles O2

Now, you need the temperature.  If you are at STP (273 K, and 1.00 atm) then 1 mole of an ideal gas at STP has a volume of 22.4 L.  Without temperature you are not really able to continue.  I will assume you are at STP.

Volume O2 = 1.188 moles O2(22.4 L/mole) = 0.0530 L of O2.

which is  53 mL.

8 0
3 years ago
Where is the fulcrum of this lever? circle and label its location on the diagram above
Sladkaya [172]

Answer:

Explanation:

1) A fulcrum is a pivot point that plays a central role (not necessarily located at the center) in a lever. The fulcrum of the attached picture has been circled (in blue).

2) The object placed on this lever's measurement tray is balanced by placing it at the center of the tray. This is the standard way of placing objects on any balance.

6 0
3 years ago
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