Help With Science

[schnorchel]

Hey all,

I am taking science in college and I am trying to do some homework. I have problems with two questions. I think 1. is G and 2. is E but I am not sure. Maybe someone can help me.

 

1. the 2nd Law of Thermodynamics

a. is a restriction law

b. states the total amount of energy in an y system does not change

c. puts limits on the amount of usable energy that can be transferred

d. states that the total amount of usable energy that any process transfers is less than the total amount of energy that went into the process

e. the difference in the amount of energy put into a system and the amount of usable energy coming out of a system is called thermal energy

f. all of the above

g. all of the above except e

 

2. Entropy

a. A measure of disorder in a system

b. Is measure of chaos in a system

c. Cannot be destroyed

d. Can be created

e. All of the above

f. None of the above

 

 

Thanks

[RyanJ]

I can give you the answers to those but I'd rather not as you'd learn nothing

 

Instead I'll gve you two links that will help you get the answer (And I assure you the answers are there) - all you have to do is find them

 

here and here

 

Cheers & Good Luck,

 

Ryan Jones

[schnorchel]

I read over the articles on Wikipedia yesterday and with my understanding the answers are for 1 G, and 2 E. Can you please tell me if they totally wrong or are I am one the right way with one of the???

 

Thanks Ryan

[RyanJ]

I read over the articles on Wikipedia yesterday and with my understanding the answers are for 1 G' date=' and 2 E. Can you please tell me if they totally wrong or are I am one the right way with one of the???

 

Thanks Ryan[/quote']

 

Sounds correct too me, those are the answers I would have put

 

Basically: 2nd Law of Thermodynamics is a law that states that all work tends to produce greater entropy over time and thus means the universe is going from a low entropy (High order) to a high entropy (Low order) state

 

Entropy is basically the meassure of dissorder in a system, the greater the number of ways the "stuff" can be arranged the greater its entropy

 

If your looking for more information on these then I suggest you read a book by Brian Greene called The Fabric Of The Cosmos, he linkes the above to the direction of time flow and also comes up in Black Holes too

 

Cheers,

 

Ryan Jones

[schnorchel]

Thanks Ryan I will read it