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vampirchik [111]
3 years ago
15

In general, what is the relationship between temperature and the reaction rate of a chemical reaction? A. When temperature incre

ases, the number and energy of collisions between particles increases, which increases the rate of the reaction. B. When temperature increases, the activation energy required for the reaction increases, which decreases the rate of the reaction. C. When temperature increases, the reaction becomes more endothermic, which increases the rate of the reaction. D. When temperature increases, the reaction becomes more exothermic, which decreases the rate of the reaction.
Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
3 0

Answer:

A. When temperature increases, the number and energy of collisions between particles increases, which increases the rate of the reaction.

Explanation:

The reaction rate measures the speed with which a reaction proceeds. Based on the collision theory of reaction rates, the rate of a given reaction depends on the number of collisions per time and how successful or effective the collisions are.

Reaction rate in view of the collision theory is very related to concentration and temperature. Both properties are directly proportional to the rate of a reaction.

As temperature increase, the rate of the reaction increases due to the number of effective collisions and the energy of between colliding particles.

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Alexxandr [17]

Answer:

Answer is D.Blue.

Explanation:

The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.

I hope it's helpful!

6 0
2 years ago
Read 2 more answers
Is a bimolecular reaction necessarily second-order? Is a second-order reaction necessarily bimolecular? Answer, with explanation
Kruka [31]
A bimolecular reaction is always a second-order reaction, but a second-order reaction is not always a bimolecular reaction.

The most important thing to take note of is that molecularity of a reaction is a concept applicable to only elementary reactions, meaning non-complex. In a way, elementary reactions are basic and achieved in one step. Complex reactions involve intermediate steps before achieving the desired reaction.

Molecularity is equal to the sum of the coefficients of the reactants, so two reactants give a second-order bimolecular reaction. However, second-order reactions can involve more than two reactants especially in complex reactions.
3 0
3 years ago
The public is not yet able to purchase hydrogen fuel cell powered cars because engineers have to determine how the cars perform
muminat

The given question is incomplete the options of the compete are:

A. On racecar tracks

B. In real-world conditions

C. In flooded environments

D. On closed courses

Answer: In real world conditions.

Explanation:

Fuel cell vehicles use hydrogen has as a fuel in order to run the car. Unlike the other conventional vehicle that run on fossil fuels and gasoline.

The hydrogen and oxygen combines together in order to power the the motor in the car. The electricity produced by the combination of this runs the car and the waste product is water.

They are also called as electronic cars but the main problem is that it has not been yet tested in the real world. There are many more physiological conditions that differ from place to place in the real world conditions.

Firstly, the cars needs to be tested in the real world and see where there are any advantages and disadvantages over conventional vehicles.

Hence, it is not available to the general public for purchase.

8 0
3 years ago
If 5.25 mL of an unknown HCl sample was titrated with 25.3 mL of a 0.00100 M solution of NaOH to its equivalence point, what is
adoni [48]
NaOH +HCl ---> NaCl +H2O

n (mol HCl) = n (mol  NaOH)
M- molarity
V - volume

M(HCl)V(HCl) = M(NaOH)V(NaOH)
M(HCl)= M(NaOH)V(NaOH)/V(HCl) 

M(HCl)= 10⁻³*25.3 ml/5.25 ml=<span>4.82 × 10⁻³ M molarity HCl</span>
3 0
3 years ago
(+)-Carvone and (-)-carvone differ in the orientations of the substituents around which of the following carbon atoms?
myrzilka [38]

Answer:

The correct option is: B. Carbon 5 only

Explanation:

Carvone is a naturally-occurring monoterpenoid consisting of a six-membered cyclic ring. <u>The </u><u><em>carbon-5</em></u><u> of this cyclic ring of Carvone is </u><u><em>chiral, </em></u><u>due to which Carvone exhibits </u><u><em>enantiomerism</em></u><u>.</u>

The two <em>enantiomeric forms</em> of Carvone are: R-(–)-carvone, or L-carvone, and S-(+)-carvone, or D-carvone.

<em><u>These two enantiomeric forms differ in the orientation of the substituents on the chiral carbon-5.</u></em>

<u />

<u>Therefore, the correct option is B. Carbon 5 only.</u>

5 0
3 years ago
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