A statement of the second law of thermodynamics is that:__________.
a) spontaneous reactions are always exothermic.
b) energy is conserved in a chemical reaction that has a decrease in entropy.
c) spontaneous reactions are always endothermic.
d) in a spontaneous process, the entropy of the universe increases.

Answers

Answer 1

Answer:

in a spontaneous process, the entropy of the universe increases.

Explanation:

Entropy is a measure of of the degree of randomness or disorderliness in a system.

The second law of thermodynamics can be stated as follows; "in any spontaneous process, the entropy of the universe increases."

The universe here refers to the system's disorder and the disorder of the surroundings. Therefore, a spontaneous process can occur, in which the entropy of the system decreases, only if the entropy increases in the surroundings.

For instance, when ice freezes, the entropy of liquid water decreases, that is, the entropy of the system decreases. However, heat is given off to the surroundings and the entropy of the surroundings increases. This is an obvious expression of this law.

Related Questions

How long does it take a plane, traveling at a constant speed of 123 m/s, to fly once around a circle whose radius is 4330 m?

Answers

Answer:

3.7 min

Explanation:

Step one:

given data

speed = 123m/s

radius of circle= 4330m

Step two:

We need to find the circumference of the circle, it represents the distance traveled

C=2πr

C= 2*3.142*4330

C= 27209.72m

Step three:

We know that velocity= distance/time

time= distance/velocity

time= 27209.72/123

time=221.2 seconds

in minute = 221.2/60

time= 3.7 min

Introduction to Simple Machines
This activity will help you meet this educational goal:
You will compare and contrast information from a video with information from a text.

Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work.
Activity
Watch this video and then answer the following questions based on what you learned.

Part A
How does a bicycle make work easier?

Part B
Which two examples of levers are mentioned in the video?

The picture shows a bicycle’s pedals. Look at the shaft that the pedals are attached to. Do you think the shaft is a lever? Why or why not?

Answers

Answer:

word for word answers!

Explanation:

1) Part A: By pedaling a bicycle lightly, the rider can go a long way

2) Part B: The two examples mentioned in the video are the handlebars and the brakes

3) Yes, it’s a type of lever because the two pedals rotate around a fixed point

Which change in an object would increase the force needed to move the object?
А.
decreasing the velocity of an object
B
increasing the volume of an object
с
decreasing the mass of an object
D
increasing the mass of an object

Answers

Answer:

D i think

Explanation:

Heavier objects (objects with more mass) are more difficult to move and stop.

Answer:

Increasing the mass of the object (option D in the list of answers)

Explanation:

Recall that F = m x a

therefore, if the mass increases, the force increases

PLEASE ans The question's in the pictures, please don't answer what already has answers. Only answer if you can finish both pages completely PLEASE I NEED HELP :(( if ur ans is relevant I will mark brainliest

Answers

Bro it’s no picture lol

Other Questions

The schools says they will take the students to see the movie with more than 30% of the votes. Which type of movie will the 7th graders be seeing? Explain your reasoning.7th grade movie votes:drama-3comedy-8action-4Work: Fraction Drama: Fraction Comedy: Fraction Action:Convert to Percent: This is for my sister she is begging me to help and I dont want to so can yall help a sista out?Why did some missions use force when interacting with Native Americans?A. To integrate them into Spanish culture B. to share meal with them C. to show off their powerD. to teach them how to build houses Find the ratio of 2p per gram to 2.12 per kilogram Josh made $242 for 11 hours of work.At the same rate, how much would he make for 7 hours of work? Ellena knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5? What is the fifth term in the sequence 17.3, 34.3, 51.3, 68.3...?A 77.7B 85C 85.3D 89.7 What is a product of respiration To prevent the header from appearing on the title page of your document, select the______ option .a. Different Odd and Even Pages b. Different First Pagec. Position Grouping d. Page Number 5x-3 /4=2x+3Pls help Ms ser vs. estarChoose the best option the completes each sentence. DIANA 24. __________ (a. Est / b. Es) lloviendo!MIGUEL Claro, 25. __________ (a. est / b. es) otoo, no?DIANA Mmm... no me gusta la lluvia y tengo que ir al hospital. 26 __________ (a. Est / b. Es) muy lejos de la casa. MIGUEL Al hospital? 27. _________ (a. Ests / b. Es) preocupada por algo (anything)?DIANA No, el padre de No 28. __________ (a. est / b. es) mdico y 29. __________ (a. est / b. es) trabajando all.MIGUEL Juan y t 30. __________ (a. estn / b. son ) novios?DIANA No, l 31. __________ (a. est / b. es) muy enamorado de otra chica. Nosotros 32. __________ (a. estamos / b. somos) amigos.MIGUEL Oye, yo 33. __________ (a. estoy / b. soy) muy aburrido ahora, quieres ir a tomar un caf?DIANA No, lo siento, no puedo... tengo que ir al hospital. Quizs el fin de How long does it take a plane, traveling at a constant speed of 123 m/s, to fly once around a circle whose radius is 4330 m? Which of the layers of the Earth has the following characteristics?i. It is solid and extremely hot.ii. It is the innermost layer of the Earth.iii. It is around 800 miles thick.A.outer coreB.inner coreC.crustD.mantle Please select the best answer from the choices providedABCD all you need is in the photo Cells reproduce by splitting in half a process called cell division what do you cells need between divisions to make sure that they dont get smaller and smaller HELP DUE TOMORROW ASAP BAINLYEST Point P is the center of the circle in the figure above. What is the value of x? what is the slope of the line shown in graph A. -2B. -1C. 1/-2D. 1/2 3. If I run 150m in 30 seconds, what speed will I have been running at? Read this paragraph from Introduction to Found Poetry.If you've ever played with a magnetic poetry kit, then you're familiar with found poetry. Words are borrowed, and yet the poem is unique. A successful found poem doesn't simply repeat information. Instead, the poet engages with the text and offers a new context, a contrary view, a fresh insight or lyrical and evocative writing. Just as plastic bottles can be recycled to make a chair, the source text is transformed into something completely different.In the excerpt from Introduction to Found Poetry, how does the author introduce the topic of found poetry?by showing how the art of found poetry grew out of items like magnetic poetry kitsby describing found poetry by comparing it with things that might be familiar to the readerby showing that using objects and ideas in creative ways is importantby describing how some found poetry is better than others Read the passage on the left to answer the following questions:7) The speaker's tone towards her subject matter can best be described asA)concerned.Eliminatelighthearted.GseriousD)unsure.