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Strike441 [17]
3 years ago
14

A cooling curve has two flat lines, or plateaus. What does the plateau at the higher temperature represent?

Chemistry
2 answers:
olga55 [171]3 years ago
6 0

Answer: condensation

Explanation: because of condensation is when gas becomes liquid, and is the higher plateaus in the cooling curve

blagie [28]3 years ago
5 0

Answer:

It is in the state of "thermal arrest"

Explanation:

The temperature stays constant during the phase change process . This is because the matter has more internal energy and heat has to be taken away for the solidification process to begin. The energy that is required for a phase change is know as latent heat (which is the energy released or absorbed by a body during a thermodynamic process).

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Please help
inna [77]

From the calculation, the standard free energy of the system is -359kJ.

<h3>What is the standard free-energy?</h3>

The  standard free-energy is the energy present in the system. We have to first obtain the cell potential using the formula;

Ereduction - E oxidation = 0.96 V - 0.34 V = 0.62 V

Using the formula;

ΔG = -nFEcell

ΔG =-(6 * 96500 * 0.62)

ΔG =-359kJ

Learn more about free energy:brainly.com/question/15319033

#SPJ1

3 0
2 years ago
Find the volume of 20g of H₂ at STP<br><br>​
ANEK [815]

Answer:224

Explanation:

We should answer it with Stoichiometry

We say: 20 g H2× (1 mol/ 2g)× ( 22.4 lit/ 1 mol) = 224

Means: we have 20 grams and every 2g H2, equals to 1 mol of it and every 1 mol of H2, equals to 22.4 lit( because of STP)

hope you got this:)

6 0
3 years ago
Indicate the correct number of sig figs
Dimas [21]

Explanation:

The answer to questions are

A) 4

B) 3

C) 5

D) 3

E) 3

3 0
3 years ago
How is a pure substance different from a mixture?
QveST [7]
The answer is A. Mixtures can be separated by physical means

A pure substance cannot be separated.
3 0
3 years ago
Read 2 more answers
How many moles of sodium will react with water to form sodium hydroxide and 4.0 moles of hydrogen?
11Alexandr11 [23.1K]
It is 4/10 of moles is this ane halp?
5 0
3 years ago
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