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3 years ago

How does an increase in temperature generally affect the rate of a reaction??

Chemistry

2 answers:

tangare [24]3 years ago

7 0

the rate increases as temperature increases

Andrew [12]3 years ago

3 0

Answer: Option (b) is the correct answer.

Explanation:

When we increase the temperature of an object then there will be increase in kinetic energy of objects. As a result, collision between the molecules will increase.

Hence, there will be increase in rate of reaction.

Also, K.E = $\frac{3}{2}kT$

where k = boltzmann constant

T = temperature

So, kinetic energy is proportional to temperature. Hence, when temperature will increase the kinetic energy will also increase.

Thus, we can conclude that an increase in temperature generally affect the rate of a reaction as the rate increases.

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ch sulfide (ZnS) occurs in the zinc blende crystal structure, (a) If 254 g of ZnS contains 170 g of Zn, what is the mass ratio o

Aleonysh [2.5K]

Answer:

The mass ratio of zinc to sulfide is 85:42.

2.5559 kg of Zn are in 3.82 kg of ZnS.

Explanation:

a) Mass of zinc sulfide = 254 g

Mass of zinc in a zinc sulfide sample = 170 g

Mass of sulfide in zinc sulfide sample = x

254 g = 170 g+ x

x = 84 g

The mass ratio of zinc to sulfide:

$\frac{170 g}{84 g}=\frac{85}{42}$

b) Mass of zincsulfide sample = 3.83 kg

The mass ratio of zinc to sulfide is 85:42.

Let the mass of zinc and sulfide be 85x and 42x respectively:

85 x+ 42 x=3.82 kg

x =0.03007 kg

Mass of an zinc= 85x=85 × 0.03007 kg= 2.5559 kg

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A certain process has ΔH° > 0, ΔS° < 0, and ΔG° > 0. The values of ΔH° and ΔS° do not depend on the temperature. Which

tino4ka555 [31]

Answer: It is non-spontaneous at all T.

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