Question

When drawing a plot of potential energy versus bond rotation for alkanes, why do some plots...

When drawing a plot of potential energy versus bond rotation for alkanes, why do some plots start at 180 deg and others at 0? Does it matter where you start and how do you know which C to rotate?
Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

minimum 60 degrees difference is mandatory when drawing energy profile diagram. Below this angle there is no appreciable change in energy of that particular conformation. Well generally plots will start from higher energy conformation to higher one through passing lower energy one. Sometimes 0 degree (eclipsed) conformation may be higher or lower than 180 degree (staggered) conformation depending upon steric, gauche, van der waals interactions of bulkier substituents positioned on those carbons.

We always rotate front carbon and being back carbon fixed. Front carbon three sigma bonds are clearly visible.

Thank You So Much! Please Rate this answer as you wish.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Consider the energy we use everyday in routine tasks, where that energy comes from, and where...
Consider the energy we use everyday in routine tasks, where that energy comes from, and where it goes. When you climb stairs you overcome the force of gravity to raise yourself to some height. It does not matter what the slope of the stairs are; the work done is against gravity which is always vertical so only the height counts. Take a typical human mass of 65 kg (roughly 143 lb of gravitational pull or weight) and a stairway up...
1.) Why do some objects fall faster than others near the surface of the earth if...
1.) Why do some objects fall faster than others near the surface of the earth if all mass is attracted equally by the force of gravity? A. Some objects fall faster because of air resistance, which acts in the direction of the motion of the object and exerts more force on objects with less surface area. B. Some objects fall faster because of air resistance, which acts in the direction opposite the motion of the object and exerts more force...
Finding the Spring Constant We can describe an oscillating mass in terms of its position, velocity,...
Finding the Spring Constant We can describe an oscillating mass in terms of its position, velocity, and acceleration as a function of time. We can also describe the system from an energy perspective. In this experiment, you will measure the position and velocity as a function of time for an oscillating mass and spring system, and from those data, plot the kinetic and potential energies of the system. Energy is present in three forms for the mass and spring system....
What do you think about this article? Are you surprised? Are you now considering your own...
What do you think about this article? Are you surprised? Are you now considering your own savings?When it comes to saving, behavior varies widely among nations. Residents of the United States only save 5.8%. But the residents of 10 countries save more than 9% of their disposable incomes. Economists are uncertain why these countries residents save so much more than others. 24/7 Wall St. has analyzed the 10 countries to try to gain insight into the matter. We reviewed personal...
Reading Assignment Read the recommended book for this course, The Power of Habit by Charles Duhigg....
Reading Assignment Read the recommended book for this course, The Power of Habit by Charles Duhigg. Answer the following questions. Briefly describe how a habit is formed. Do not just list. Describe. There are the 3 main steps that need to be identified The Habits of Individuals The habits of successful organizations THe habits of societies . Explain each one and how the loop works. You will also need to identify the 4th step which is vitally important in having...
Mini case: CHECKING IT OUT When Arlene Ryan inherited $250,000 from her grandfather, she decided to...
Mini case: CHECKING IT OUT When Arlene Ryan inherited $250,000 from her grandfather, she decided to use the money to start her own business. Arlene has been a legal secretary for 14 years and feels she knows quite a lot about business. “Every day I take depositions and type legal memoranda,” she noted to a friend. “And I’ve seen lots of businesses fail because they didn’t have adequate capital or proper management. Believe me, when you work for a law...
6.   If the general level of interest rates goes down and I am holding a bond with...
6.   If the general level of interest rates goes down and I am holding a bond with a fixed coupon rate, I would expect the value of my bond to a.stay the same b.double c.increase d.decrease e.not enough information to tell 7.  The Rule of 72’s a.Is about doubling the present value to get the future value. b.Says that 72 divided by the payment gives you the number of years to double. c.Says that the rate divided by 72 gives you the...
do all five questions Question 1 20 pts Ignoring the effects of air resistance, if a...
do all five questions Question 1 20 pts Ignoring the effects of air resistance, if a ball falls freely toward the ground, its total mechanical energy Group of answer choices increases remains the same not enough information decreases Flag this Question Question 2 20 pts A child jumps off a wall from an initial height of 16.4 m and lands on a trampoline. Before the child springs back up into the air the trampoline compresses 1.8 meters. The spring constant...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific? a. when it is based on something other than observation b. when it can be tested and is refutable c. when it relies on anecdotal evidence d. when it relies on mystical explanations e. All hypotheses are considered scientific until experiments determine otherwise. 3. Of the following, which is the earliest step in the scientific process? a. generating a hypothesis b. analyzing data c. conducting an experiment d. drawing a conclusion e. developing a...
1 In the absence of oxygen, cells consume glucose at a high, steady rate. When oxygen...
1 In the absence of oxygen, cells consume glucose at a high, steady rate. When oxygen is added, glucose consumption drops precipitously and is then maintained at the lower rate. Why is glucose consumed at a high rate in the absence of oxygen and at a low rate in its presence? 2 In the following diagram showing the distribution of thermal energy in a population of substrate molecules, the energy thresholds indicated by numbers represent ... Energy per molecule Number...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT