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vlada-n [284]
4 years ago
9

As the number of solute particles in a solution increases, the effect on the freezing point of the solution increases. Which ion

ic compound will lower the freezing point the most if 1 mol of it is added to 1 L of water?
AlCl3


NaCl


KBr


MgCl2
Physics
1 answer:
polet [3.4K]4 years ago
5 0

Answer:

AlCl₃

Explanation:

Impurities depressing the freezing point of a solvent  is called colligative property . It depends upon no of particles or ions of impurities. When the given compounds are dissolved in water , they break into ions and depress the freezing point . No of ions formed by one molecule of compound AlCl₃  on ionization is  highest ( 4 ) . So this compound will have highest strength to lower the  freezing point of solvent.

AlCl₃  = Al⁺⁺⁺  +   3Cl⁻

Total no of ions after ionization

= 1 + 3 = 4 .

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3 years ago
If a steel containing 1.88 wt%C is cooled relatively slowly to room temperature, what is the expected weight fraction of pearlit
Oxana [17]

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4 0
3 years ago
Nuclear fusion has not yet been harnessed as an energy source because
maksim [4K]

Before getting an answer for it first we have to understand nuclear fusion.

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The theorem is stated as E = mc^{2} where c is the velocity of light and m is the mass converted into energy.

One take an example of fusion in sun where 4 hydrogen atoms combine to form a helium nucleus which are explained below-

                                                      H_{1}^{1}+H_{1} ^{1} =H_{1} ^{2} +e_{+1} ^{0} +energy

                                                      H_{1} ^{2} +H_{1} ^{1} =He_{2} ^{3} +energy

                                                      He_{2} ^{3}+H_{1} ^{1} =He_{2} ^{4} +e_{+1} ^{0} +energy

                                                       -----------------------------------------------------------------------

                                                        4H_{1} ^{1} = He_{2} ^{4} +2e_{+1} ^{0} +energy

Here e_{+1} ^{0} is the positron.

In this process very high temperature is needed which is approximately equal to the temperature of the sun i.e 10^{6} K

Such temperature is very difficult to initiate the reaction on the earth surface. It should be carried out in an sustainable way also .Otherwise It will cause nuclear hazards.

6 0
3 years ago
Read 2 more answers
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