Why is it thermodynamically possible for some ionic solids to dissolve even though the process is endothermic?

1 answer:

7 0

Spontaneity....
There are two components which together decide whether a procedure is unconstrained or not: enthalpy change (ΔH) and entropy change (ΔS). Procedures which are unconstrained move from a higher vitality to a lower vitality and hinted at by the Gibbs free vitality.
ΔG = ΔH - TΔS
A negative ΔG shows an unconstrained procedure. Regardless of whether the enthalpy change is certain the entropy change can likewise be sure, which influence the estimation of ΔG to negative, demonstrating an unconstrained procedure. This makes sense since in the broke down state, where a substance is part separated into particles, the quantity of microstates will be more prominent (expanding entropy).

You might be interested in

Question 10 of In which way does a balanced chemical equation demonstrate the conservation of matter? A. It shows the same numbe

prisoha [69]

Answer:

it’s probably c

Explanation:

3 0

3 years ago

Read 2 more answers

Diazomethane has the molecular formula CH2N2. Draw the preferred Lewis structure for diazomethane and assign formal charges to a

Alja [10]

Answer:

See explanation

Explanation:

We define the formal charge on an atom in a molecule as the charge it carries assuming that electrons in all chemical bonds of the molecule were shared equally between atoms irrespective of the electronegativity of each atom.

The formula for calculating the formal charge on an atom in a molecule is;

Formal Charge = [number of valence electrons on neutral atom] – [(number of lone electron pairs) + (½ number of bonding electrons)] ·

The formal charge on the two nitrogen atoms in diazomethane is obtained as follows;

Middle nitrogen atom = 5 – 8/2 – 0 = +1

Last nitrogen atom = 5 – 4/2 – 4 = –1

The Lewis structure of the molecule is shown in the image attached.

8 0

3 years ago

Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in th

Natali5045456 [20]

A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25

6 0

3 years ago

Car battery energy that makes device work

MAXImum [283]

Engine is it ok ksndjsjja

4 0

3 years ago

Read 2 more answers

What occurs when the vapor pressure of a lquid is equal to the external atmospheric pressure

AlekseyPX

Answer:

The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.

Explanation:

Boiling is a physical change and molecules are not chemically altered during the process.

8 0

3 years ago