finding heat

Moderators: Chem_Mod, Chem_Admin

Briana Yik 1H
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

finding heat

Postby Briana Yik 1H » Thu Jan 31, 2019 12:51 pm

How do we know when to use latent heat and specific heat? Thank you!

Posts: 18891
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 716 times

Re: finding heat

Postby Chem_Mod » Thu Jan 31, 2019 1:55 pm

latent heat is used during a phase change process (temperature does not change when heat is applied) while specific heat is used when heat is used for non-phase change process.

Ryan Troutman 4L
Posts: 68
Joined: Fri Sep 28, 2018 12:22 am

Re: finding heat

Postby Ryan Troutman 4L » Thu Jan 31, 2019 3:50 pm

Latent heat is only used when transitioning from one phase to the other. For example, if you are trying to transition from a solid to a liquid, that transition is the energy required to change from the solid state to the liquid state. Specific heat is the energy required to raise the temperature of a system by 1 degree Celsius. We can use specific heat when trying to rise from 49 to 50 degrees for a specific element or compound by dividing by its mass in grams or moles.

Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Re: finding heat

Postby EllaBerry » Thu Jan 31, 2019 9:01 pm

Latent heat is used in the case where a phase change is occurring while specific heat is defined as the amount of heat required to raise either a mol or a gram of something by 1 degree C.

Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest