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labwork [276]
3 years ago
10

As a chemical reaction proceeds toward equilibrium, the free energy of the system decreases at constant temperature and constant

pressure. true or fals
Chemistry
1 answer:
olganol [36]3 years ago
8 0

Answer:

True

Explanation:

GIBBS FREE ENERGY (G) Gibbs free energy is a thermodynamic function It is a state function. G = H - TS At constant temperature At constant pressure and temperature An increase in S corresponds to a decrease in free energy

Constant free energy (G) P, T The important thing about free energy is that whenever the pressure and temperature are constant, we can determine the spontaneity of a process only in terms of the thermodynamic properties of the system G = H - TS The Free energy change is a measure of the change in the total entropy of a system and its environment at constant temperature and pressure. <u>Spontaneous processes at constant temperature and pressure are accompanied by a decrease in free energy</u>.

At constant temperature and pressure, the direction of spontaneous change is towards the lowest free energy. <u>The equilibrium state of a system corresponds to the lowest point of the free energy curve </u>.

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Which scientist used the word "cell” for the first time in science?
Ludmilka [50]

Answer:

C

Explanation:

5 0
4 years ago
A particle has a mass of 2 × 10-30 kg and an uncertainty in its velocity of 102 m/s. What is the minimum possible uncertainty in
notka56 [123]

m = mass of the particle = 2 x 10⁻³⁰ kg

Δv = uncertainty in velocity of the particle = 10² m/s

Δx = uncertainty in position of the particle = ?

h = plank's constant = 6.63 x 10⁻³⁴ J-s

uncertainty principle is given as

m Δx Δv ≥ h/(4π)

inserting the values

(2 x 10⁻³⁰) Δx (10²) ≥ (6.63 x 10⁻³⁴)/(4(3.14))

Δx ≥ 2.64 x 10⁻⁷ m

so minimum possible uncertainty is 2.64 x 10⁻⁷ m

3 0
3 years ago
How are gold medal cells and human cells alike and different
kondor19780726 [428]
Your skin is a tougher substance

3 0
3 years ago
Which acid/base pair will give an equivalence point that cannot be predicted solely by a general knowledge of acid and base stre
sleet_krkn [62]

The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

<h3>What is an Acid and base?</h3>

An Acid is a substances that is corrosive in nature and turn blue lithmus paper to red which it react with base to produce salt and water.

Acid dissolve metals.

Base is a substance that turn red lihthmus paper to blue and react with acid to produce salt and water.

Therefore, The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

The question is incomplete as the options were not given. The options were gotten from another website.

Select the correct answer below:

ONaOH and HCI ONH,

HC ONH, and CH, COOH

NaOH and Christmas, COOH

Learn more about acid and base below.

brainly.com/question/2506771

8 0
2 years ago
Determine the percent water in MgSO4*7H20?
Semmy [17]

Answer:

\% H_2O=51.2\%

Explanation:

Hello!

In this case, since the percent water is computed by dividing the amount of water by the total mass of the hydrate; we infer we first need the molar mass of water and that of the hydrate as shown below:

MM_{MgSO_4* 7H_2O}=120.36 g/mol+7*18.02g/mol\\\\MM_{MgSO_4* 7H_2O}=246.5g/mol

Thus, the percent water is:

\% H_2O=\frac{7*MM_{H_2O}}{MM_{MgSO_4* 7H_2O}} *100\%\\\\

So we plug in to obtain:

\% H_2O=\frac{7*18.02}{246.5} *100\%\\\\\% H_2O=51.2\%

Best regards!

5 0
3 years ago
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