Which of the following best expresses the definition of an open system? (2 points)
Answer

Energy can enter or leave the system but matter cannot.

Heat and matter are both able to enter or leave the system.

Matter can enter or leave the system but energy cannot.

Heat and matter can enter the system but cannot leave the system.

Question

Which of the following best expresses the definition of an open system? (2 points)
Answer
		
Energy can enter or leave the system but matter cannot.
		
Heat and matter are both able to enter or leave the system.
		
Matter can enter or leave the system but energy cannot.
		
Heat and matter can enter the system but cannot leave the system.

anonymous · Answer

@ryan123345

anonymous · Answer

Both matter and energy are exchanged freely between systems and surroundings.

anonymous · Answer

but that doesn't apply to any of the answer choices @fourme

anonymous · Answer

I got this information from my chemistry lesson recently.

anonymous · Answer

I think it' b

anonymous · Answer

it's

anonymous · Answer

a is a closed system

anonymous · Answer

Ill do some research. Be back in a minute.

anonymous · Answer

I agree with you on B. 
Systems: Flexible system that can adapt and change by interacting with its external environment and, therefore, can defy the effects of entropy. Open systems (such as living organisms, markets, economies) take inputs from the environment, process and transform them, and send them back to the environment as output or waste.

anonymous · Answer

This means they can enter or leave. Good luck!

anonymous · Answer

thank you - you're amazing!!!!!!!!!!!!!!!!!!!!!!!!

anonymous · Answer

Your welcome. Ask me anytime and Ill see what I can do.

anonymous · Answer

This is definitely D right??

What statement best describes a closed system? (2 points)
Answer
		
Matter and energy can be exchanged freely between system and surroundings
		
Matter can be exchanged between system and surroundings, but energy cannot
		
Energy can be exchanged between system and surroundings, but matter cannot
		
Neither energy nor matter can be exchanged between the system and surroundings

anonymous · Answer

I have in my notes that energy can enter and leave but matter cannot. 
But, yes I do agree with you.

anonymous · Answer

yay this isn't that hard:) are you taking Chem?

anonymous · Answer

yes. My first year. I hate it!!! lol

anonymous · Answer

I do too! hahaha

anonymous · Answer

Which of the following is the best example of a closed system? (2 points)
Answer
		
a car engine
		
our universe
		
a greenhouse
		
an insulated gas cylinder
  

Answer: C

anonymous · Answer

I have earth and sealed glass containers.

anonymous · Answer

i think a greenhouse would apply

anonymous · Answer

Yes. Me too

anonymous · Answer

thanks:)

anonymous · Answer

Which of the following best expresses the definition of a closed system? (2 points)
Answer
		
Energy can enter or leave the system but matter cannot.
		
Heat and matter are both able to enter or leave the system.
		
Matter can enter or leave the system but energy cannot.
		
Heat and matter can enter the system but cannot leave the system.


My answer is D for sure

anonymous · Answer

I would agree

anonymous · Answer

:)

anonymous · Answer

Anymore?

anonymous · Answer

yes let me find one

anonymous · Answer

im trying to answer some solo

anonymous · Answer

Alright! Just message me if you need help.

theloshua · Answer

Ummmm..... Most of these answers are actually wrong....