Review Session Concept Clarification

Moderators: Chem_Mod, Chem_Admin

Frenz Cabison 1B
Posts: 54
Joined: Fri Sep 29, 2017 7:07 am

Review Session Concept Clarification

Postby Frenz Cabison 1B » Sun Feb 11, 2018 5:38 pm

There's this T/F statement in the practice MT. It is question 1E. Why is the statement "removing heat from a system is exothermic, so temperature must decrease" false? I remember someone said to refer to the graph during the review session, but I don't quite understand the concept behind it.

Ethan-Van To Dis2L
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

Re: Review Session Concept Clarification

Postby Ethan-Van To Dis2L » Sun Feb 11, 2018 5:46 pm

Just because you remove heat from the system it doesn't necessarily mean that the temperature will change. If you look at the phase change diagram, if you remove a certain amount of energy from the flat part of the graph, the temperature will remain constant. Like how if constantly added energy to a pot of boiling water, the temperature would still be 100 degrees Celsius.

Return to “Concepts & Calculations Using First Law of Thermodynamics”

Who is online

Users browsing this forum: No registered users and 3 guests