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Inessa [10]
3 years ago
9

Is hydrofluoric acid stronger than acetic acid?

Chemistry
1 answer:
Nesterboy [21]3 years ago
7 0
<span>benzoic acid is stronger</span>
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C2H4(g) + H2(g) → C2H6(g) ΔH = –137.5 kJ; ΔS = –120.5 J/K Calculate ΔG at 25 °C and determine whether the reaction is spontaneou
Katen [24]

Answer:-ΔG=-101.5KJ

Explanation:We have to calculate ΔG for the reaction  so using the formula given in the equation we can calculate the \Delta G for the reaction.

We need to convert the unit ofΔS in terms of KJ/Kelvin as its value is given in terms of J/Kelvin

Also we need to convert the temperature in Kelvin as it is given in degree celsius.

\Delta H=-137.5\\ \Delta S=-120J/K\\ \Delta S=-0.120KJ/K\\ T=25^{.C}\\ T=273+25=298 K\\ \Delta G=?\\ \Delta G=\Delta H-T\Delta S\\\Delta G=-137.5KJ-(278\times -0.120)\\ \Delta G=-137.5+35.76\\\Delta G=-101.74\\\Delta G=Negative

After calculating forΔG we found that the value ofΔG is negative and its value is -101.74KJ

 For a  reaction to be spontaneous the value of \Delta G \ must be negative .

As the ΔG for the given reaction is is negative so the reaction will be spontaneous in nature.

In this reaction since the entropy of reaction is positive and hence when we increase the temperature term then the overall term TΔS would become more positive  and hence the value of ΔG would be less negative .

Hence the value of ΔG  would become more positive with the increase in temperature.

So we found the value of ΔG to be -101.74KJ

4 0
3 years ago
Read 2 more answers
___∆ 1. Erosion is / is not caused by water, ice, wind, chemicals, and sand. (pick one)
svlad2 [7]

Answer:

1. Chemicals

2. Erosion

3. Solids

4. Expands

5. Chemical

6. Arch

7. Sand

8. Surface

Explanation:

7 0
3 years ago
Does this seem like a good hypothesis?
kondaur [170]
Yeah it uses some valuable scientific vocabulary and background knowledge, I hope this hypothesis will be good enough for your teacher (don't worry it will be)
6 0
3 years ago
What evidence do you need to determine that two rocks have some similar minerals because the minerals from the original rock was
klio [65]

Answer:

It comes from same parent material.

Explanation:

The two rocks have some similar minerals which indicates that they are comes from the same parent material but with the passage of time it is mixed with other minerals due to which they are some different in composition from one another so we can conclude that they comes from the same parent material due to the presence of some similar minerals.

5 0
3 years ago
WHAT CAUSES THE MOVEMENT OF THESE AIR PARTICLES IN SOUND WAVES?
SVETLANKA909090 [29]
A vibrating string can create longitudinal waves as depicted in the animation below.



The answer is C) vibrations
8 0
3 years ago
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