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4 years ago

Which statement is true about crystal lattice energy?

Physics

2 answers:

irinina [24]4 years ago

3 0

The answer is:

It is a measure of the strength of the bonds between ions.

Lattice energy is an estimate of the strength of the bonds formed by ionic compounds.

The first two choices are wrong because it is actually the opposite.

As the ion size increases, lattice energy <u>decreases</u>.

As charge of ions increases, lattice energy <u>increases</u>

As for the other third option, it is wrong because lattice energy is the energy RELEASED not absorbed.

BabaBlast [244]4 years ago

3 0

Answer: The correct option is:

It is a measure of the strength of the bonds between ions.

Explanation:

Lattice energy is defined as amount of energy released on the formation of one mole of crystalline solid from gaseous ions.It is also defined as energy required to break the 1 mole of crystalline solid into its constituting ions in gaseous state that is strength between the ions.

It depends upon two factors:

With increase in charge on the ion the lattice energy increases.
With increase in the size of the ions the lattice energy decreases.

So, from the given options the correct statement is:

It is a measure of the strength of the bonds between ions.

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When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain.

lorasvet [3.4K]

$\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}$

$\sf \red{When \: baking \: soda \: is \: mixed \: with \: lemon \: juice, \: bubbles \: are \: formed \: with \: the \: evolution \: of \: a \: gas.}$

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When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. The gas is formed in the reaction is Carbon dioxide. $CO_{2}$ is formed.

The change which happened in this reaction is a chemical change.

$\boxed{ \frak \green{Explanation}}$

Since, in chemical change we can't bring a substance to it's actual form how it was in earlier.

Examples: burning of paper is chemical, since we can't get the fine paper again after it is burnt.

Thus, the above reaction is also a chemical change, since we can't get back the lemon juice how it was earlier.

$\boxed{ \frak \red{Brainlysamurai}}$

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