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2 years ago

What would cause entropy to decrease in a reaction

Chemistry

2 answers:

Stels [109]2 years ago

5 0

Answer:

water

Explanation:

when water freezes its entrophy decreases

aleksley [76]2 years ago

3 0

<h2>Answer:</h2>

The decrease in entropy is caused when the product of a reaction has lesser disorder than that of reactant.

<h2>Explanation:</h2>

As we know that the entropy is the measure of system's disorder, the entropy in solid is less than that of liquid and gases. Gases have highest entropy. The thermodynamics, the second law is based on entropy which defines that in spontaneous reaction, there is always increase in the entropy.

If the reactants are undergoing a chemical reaction to produce a product that has lesser disorder, then there is decrease in entropy. For example, if two gases react to form a solid, then there will be decrease in entropy.

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3 years ago

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2 years ago

Given 7.90 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100

Lana71 [14]

Answer : 9.293 g

Explanation : The reaction is

$C_{4}H_{8}O_{2} + C_{2}H_{5}OH ----\ \textgreater \ C_{6}H_{12}O_{2} + H_{2}O$

Here, if we assume the stoichiometric esterification ratio as 1:1 then,

no. of moles of $C_{4}H_{8}O_{2}$ = 7.05 g/ 88 = 8.011 $X 10^{-2}$ moles

so here, no. of moles of ethyl butyl rate = no. of moles of butyric acid ;

$\frac{m (C_{4}H_{8}O_{2})}{M (C_{4}H_{8}O_{2})} = \frac{m (C_{6}H_{12}O_{8})}{M (C_{6}H_{12}O_{8})}$

$m(C_{6}H_{12}O_{8}))$ = (7.05 /88.11) X 116.16 = 9.29 g

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3 years ago

When dry ice is exposed to the air, it changes to a vapor. This is an example

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Answer:

b) evaporation

Explanation:

hope this helps

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