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Black_prince [1.1K]
3 years ago
6

Which process transfers heat when particles collide in a solid

Chemistry
1 answer:
Afina-wow [57]3 years ago
5 0
The correct answer is conduction. Radiation involves heat moving through space (I think as light but I could be wrong) and convection involves heat transferring through the movement of a fluid such as gas or liquid.

I hope his helps.  Let me know in the comments if anything is unclear.
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When 1.82 moles of HCL reacts with excess MnO2, how many moles of Cl2 form
s2008m [1.1K]

The balanced reaction is:<span>

MnO2(s) + 4HCl(aq) → Cl2(g) + MnCl2(aq) + 2H2O(l)

We are given the amount of hydrochloric acid to be used for the reaction. This will be the starting point for the calculations.

1.82 mol HCl ( 1 mol Cl2 / 4 mol HCl) = 0.46 mol Cl2

<span>Therefore, 0.46 mol of chlorine gas is produced for the reaction of hydrochloric acid and manganese oxide.</span></span>

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3 years ago
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What is the difference between random decay and theoretical?
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Answer:

Spontaneous and random. Decay is called spontaneous because the occur on their own and are unaffected by external factors like temperature, pressure, and many more. Decay is called random because we cannot determine the rate at which it decays but can only determine the probability of the decay.Oct 21, 2015

Explanation:

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3 years ago
What is heat of vaporization?
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Answer:

Your answer is D. It is the heat required to change a gram of substance from a liquid to a gas.

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3 years ago
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If a reaction has a very low activation energy, the products would be expected to form quickly at high temperatures. Select the
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Answer: Option (c) is the correct answer.

Explanation:

It is known that when Gibb's free energy, that is, \Delta G has a negative value then the reaction will be spontaneous and the formation of products is favored more rapidly.  

Activation energy is defined as the minimum amount of energy required to initiate a chemical reaction.

So, when reactants of a chemical reaction are unable to reach towards its activation energy then a catalyst is added to lower the activation energy barrier so the reaction can take place rapidly.

Since, the given reaction has low activation energy. Therefore, there is no need to add a catalyst.

And, when value of \Delta G is positive then the reaction is spontaneous in nature and formation of products is less favored.

Thus, we can conclude that for the given situation positive delta G is the reason that a reaction might form products very slowly, or not at all.

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