Rank standard molar entropy without a data table? Without referring to a data table, rank the following compounds by standard molar entropy (highest to lowest). I can do it with a data table but not sure how to proceed without. Thank you for your help. N2(g) H2(g) C2H4(g)

Answers

Answer 1

Answer: I think the correct order from most entropy to least entropy is C2H4, N2, and H2. My reasoning is that C2H4 has the biggest number of microstates which means that it will have the most entropy since it. I then based N2 and H2 from there weights (which indicates size) since the larger something is the more microstates it is likely to have. I hope that helps. Let me know if anything is unclear or if you want me to add more detail.

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Write the balanced molecular equation and net ionic equation for the neutralization reaction between hydrochloric acid and strontium hydroxide. Include the phase of each species.

Answers

Answer:

the net ionic equation is H+(aq) + OH-(aq)----->H2O(l)

Explanation:

In conclusion to the earlier solution, 2H+(aq) + 2OH-(aq)----->2H2O(l) can be broken down because they all have the same coefficient. So divide both sides by 2.

The net ionic equation will be H+(aq) + OH-(aq)----->H2O(l)

Final answer:

The balanced molecular equation for the neutralization reaction between Hydrochloric acid (HCl) and Strontium hydroxide (Sr(OH)2) is HCl(aq) + Sr(OH)2(aq) -> SrCl2(aq) + 2H2O(l). Its net ionic equation is 2H+(aq) + 2OH-(aq) -> 2H2O(l). Spectator ions are eliminated during the formulation of the net ionic equation.

Explanation:

A neutralization reaction between hydrochloric acid and strontium hydroxide can be represented by the balanced molecular equation: HCl(aq) + Sr(OH)2(aq) -> SrCl2(aq) + 2H2O(l). Breaking it down into the total ionic equation we will have: H+(aq) + Cl-(aq) + Sr2+(aq) + 2OH-(aq) -> Sr2+(aq) + 2Cl-(aq) + 2H2O(l). This can be simplified by removing the spectator ions to obtain the net ionic equation: 2H+(aq) + 2OH-(aq) -> 2H2O(l). This aligns with the principle that in a neutralization reaction, an acid reacts with a base to form water and a salt.

Learn more about Neutralization Reaction here:

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The enthalpy of a system is the same as its:A. specific heat.
B. heat of reaction.
C. heat of combustion.
D. heat content.

Answers

The answer for above statement:

D. heat content.

Explanation:

Enthalpy is a measure of the total energy of a thermodynamic system. It includes the internal energy, which is the energy required to create a system, and the amount of energy required to make room for it by displacing its environment and establishing its volume and pressure.

Heat content - (thermodynamics) a physical science amount adequate the interior energy of a system and the merchandise of its volume and pressure.

Ans D) heat content

Enthalpy (H) is a thermodynamic state function which according to the first law of thermodynamics is a sum of internal energy (E) and the pressure- volume (PV) work.

i.e. H = E + PV

Thus, enthalpy is the total heat content of a system which includes contributions from both kinetic and potential energy.

Which is the best way to determine if an object is made of pure silver

Answers

Answer:

The Nitric Acid Test

Explanation:

The Nitric Acid Test is used to check if silver is pure or plated. To do so, file a small part of the item in a discreet area where it cannot be seen. Apply a few drops of nitric acid. If the area turns into creamy white, the silver is pure or sterling. If green, it is probably fake or silver-plated.

How many calories are there in 32 Calories

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Answer:

Explanation:

In the Bronsted-Lowery definition, an an acid is a substance that.. a. donates protones b. accepts protones c. neutralizes hydronium ions d. forms a salt

Answers

Answer:

Explanation:

acids have weak bonds between hydrogen atoms and (usually) oxygen, which results in its ability to donate the protone

Which energy transformation occurs when anelectrolytic cell is in operation?
(1) chemical energy → electrical energy
(2) electrical energy → chemical energy
(3) light energy → heat energy
(4) light energy → chemical energy

Answers

The correct answer is option 1. The operation in an electrolytic cell transforms energy from chemical energy to electrical energy. This is a cell which electrolysis occurs to produce electrochemical reaction and eventually producing an electric current.

Answer:

(2) electrical energy -> chemical energy

Explanation:

Castle learning

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