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zubka84 [21]
3 years ago
14

What is the value of ΔG in a spontaneous reaction?

Chemistry
2 answers:
Amanda [17]3 years ago
7 0
The value of Triangle G is A) Less than 0.
Verdich [7]3 years ago
3 0

Answer:  A.)  Less than 0

Explanation:  Spontaneous Reactions are the reaction in which the reaction moves more towards the product side.

It is the reaction in which there is a release of free energy and the the reaction will move towards the stable energy state.

Thus the ΔG for a spontaneous reaction must always be less than zero and E must always be greater than zero.

ΔG  = change in gibbs free energy and E = electrochemical potential.

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Of the reactions listed below, which one is NOT a combination reaction? A) C + O2 => CO2 B) 2Mg + O2 => 2MgO C) 2N2 + 3H =
Alex_Xolod [135]

Answer:

E

Explanation:

A combination reaction is one in which two elements or two compounds react to give a new single compound

Hence, what we are expecting on the reactant side is only a single product and not a mixture of products

For the first reaction, we had two elements giving a single product

For the second reaction, we had same

For the third, we had same

For the fourth, we had two compounds reacting to give a singe new product

While in the last, we had two different products which means it does not follow the definition of a combination reaction and that makes it our answer

5 0
3 years ago
The Balmer series consists of the spectral lines from hydrogen for an electron making a transition from an excited state to the
MaRussiya [10]

Answer:

Wavelength of the first four spectral line:

\lambda_1=1216{\AA}

\lambda_2=1026{\AA}

\lambda_3=972.8{\AA}

\lambda_4=950{\AA}

Explanation:

Lman series when electron from higher shell number and jumps to 1st shell then all the possible lines is called as lyman series.

to calculate wavelength of first four spectral line:

For hydrogen Z=1;

by using rydberg equation

\frac{1}{\lambda} =RZ^2[\frac{1}{n_1^2} -\frac{1}{n_2^2} ]

1. n=2 to n=1

\frac{1}{\lambda} =RZ^2[\frac{1}{n_1^2} -\frac{1}{n_2^2} ]

\frac{1}{R} =912{\AA} =rydberg constant

\lambda=\frac{4}{3R}

\lambda_1=1216{\AA}

2. n=3 to n=1

\lambda=\frac{9}{8R}

\lambda_2=1026{\AA}

3. n=4 to n=1

\lambda=\frac{16}{15R}

\lambda_3=972.8{\AA}

4. n=5 to n=1

\lambda=\frac{25}{24R}

\lambda_4=950{\AA}

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3 years ago
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Why can two igneous rocks that have the same minerals but different names?
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C. the rock may have diferrent textures 

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3 years ago
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A scientist wants to perform a controlled experiment to test the effect of rust on chemically treated iron. which action would b
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The answer is to test a piece of untreated and treated under same conditions!
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