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m_a_m_a [10]
2 years ago
14

In going from a texas summer room temperature (35. 0°c) to 10°c above room temperature, the rate of a reaction quadruples (incre

ases by a factor of 4). Calculate the activation energy for the reaction.
SAT
1 answer:
Elza [17]2 years ago
3 0

Based on the information given, it has been computed that the activation energy will be 105.8Kj.

<h3>How to calculate activition energy</h3>

From the information given,

T1 = 25 + 273 = 298K

T2 = 35 + 273 = 308J

R = 8.314J/mol

K2/K1 = 4

Therefore,

log(4) = E/(2.303 × 8.314) × [10/(298 × 308)]

= (0.602 × 2.303 × 8.314 × 298 × 308) / 10

= 105.8KJ

Therefore, the activation energy is 105.8KJ.

Learn more about activation energy on:

brainly.com/question/1380484

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Satya, nina, and iana each have a 3/4 chance of going to café georgia for an afternoon coffee at 1:00pm. Bohan will only go to c
larisa86 [58]

Using the binomial distribution, it is found that there is a 0.9844 = 98.44% probability that bohan goes to café georgia for a coffee today.

For each friend, there are only two possible outcomes, either they go to the cafe, or they do not. The probability of a friend going to the cafe is independent of any other friend, hence, the binomial distribution is used to solve this question.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • There are 3 friends, hence n = 3.
  • They all go to the cafe with a 3/4 probability, hence p = 3/4 = 0.75.

The probability at least one goes is:

P(X \geq 1) = 1 - P(X = 0)

In which:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{3,0}.(0.75)^{0}.(0.25)^{3} = 0.0156

Then:

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.0156 = 0.9844

0.9844 = 98.44% probability that bohan goes to café georgia for a coffee today.

You can learn more about the binomial distribution at brainly.com/question/24863377

3 0
3 years ago
Smallest to biggest in odder 2/3,0.53/5,0.65
Romashka [77]
0.53
0.65
2/3
5
hope that helped

8 0
3 years ago
Read 2 more answers
The equation for the ph of a substance is ph = –log[h+], where h+ is the concentration of hydrogen ions. What is the approximate
Maru [420]

The pH of the substance is 3.3 which is acidic.

<h3>What is pH?</h3>

The pH of a substance or solution is referred to the degree of acidity or alkalinity of that substance. It is measured on a scale of 0 -14.

  • pH <7 are termed acidic
  • pH >7 are alkaline
  • pH =7 are termed neutral

Given  the concentration of hydrogen ions as 5. 0 × 10–4 moles per liter,we  use the formulae

ph = –log[h+]

plugging in thge value of  h+ as 5. 0 × 10–4 moles per liter we have:

pH = –log{5. 0 × 10–4 ]

pH=3.3

See here for calculation of pHs: brainly.com/question/26430079

5 0
2 years ago
Distinguish between active transport and passive transport.
Volgvan
Active is where it is a form of transport always moving, passive transport is just holding
7 0
2 years ago
The process within a civil case where evidence is gathered and witnesses found is known as which of the following?
slava [35]

Answer: Preliminary hearing.  

____________________________________________________________   Explanation:  

When all the evidences and witnesses are gathered, they are made to stand in front of a judge during preliminary hearing whose purpose is to screen out cases and end the weak cases beforehand so that an innocent person does not have to get through unfounded prosecutions.

8 0
3 years ago
Read 2 more answers
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