Question

*WILL GIVE MEDALS* Describe, differentiate between, and give examples of open, closed, and isolated systems.

Answer 1

@Vincent-Lyon.Fr @Abhisar @Australopithecus @EWack @rsadhvika

Answer 2

http://www.geosci.ipfw.edu/PhysSys/Unit_1/threebox.jpg

Answer 3

If a system is isolated, then nothing can enter or leave. A bomb calorimeter only allows heat to be exchanged. Such a system is called closed. An example of a closed system is a balloon being heated so the gas inside expands it, or a piston like in the movie : no matter is exchange, only heat. When both matter and energy can be exchanged, the system is called open. I hope this helps :)

Answer 4

Yes! that does help alot!! Really good explanation! Thank you!

Answer 5

No problem. :)

Answer 6

Isolated System = Niether mass nor energy can escape or enter.
Closed system = Mass can't escape or enter but energy exchange can take place.
Open System = Both energy and mass can b exchanged between system and environment.

Answer 7

@danicap are you really good at chem??

Answer 8

Depends on what you're working on. If it's moles and percents then no :P But other than that, yeah :)

Answer 9

Do you wanna help me with some response question?? Its the study guide for the final and its like 100 pages long but i need help on the last three sections!

Answer 10

Sure, I can do my best :)

Answer 11

Thanks!!
1. Describe what happens to energy over the course of a reaction.

2. Distinguish between endothermic and exothermic processes in terms of observed temperature changes and energy flow.

3. Be able to create and interpret potential energy diagrams for endothermic and exothermic processes.

Answer 12

is this the question @danicap

Answer 13

@SkaterBoyShawn no, I messaged you

Answer 14

sorry am i helping @georgia545

Answer 15

oh sorry ok

Answer 16

so can i message u the answer

Answer 17

@SkaterBoyShawn yes,

Answer 18

@georgia545
1.
This diagram shows that, overall, the reaction is exothermic. The products have a lower energy than the reactants, and so energy is released when the reaction happens.

Answer 19

2.
•
All chemical reactions involve the transfer of energy.

•
Endothermic processes require an input of energy to proceed and are signified by a positive change in enthalpy.

•
Exothermic processes release energy upon completion, and are signified by a negative change in enthalpy



Source: Boundless. “Exothermic and Endothermic Processes.” Boundless Chemistry. Boundless, 01 Jun. 2015. Retrieved 04 Jun. 2015 from https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/thermochemistry-6/enthalpy-59/exothermic-and-endothermic-processes-277-3716/

Answer 20

this one

Answer 21

I hope I helped

Answer 22

if a system is open, then anything can enter. if closed then nothing can enter. if its isolated then neither of the above can happen because it cancels them out.