Page 1 of 1
Delta H
Posted: Mon Jan 28, 2019 3:51 pm
by Marsenne Cabral 1A
What is the difference between Delta H and T? Today in Lecture Lavelle said that an increase in T would mean the reaction is exothermic, and that would mean that the delta H is negative, so how would that work?
Re: Delta H
Posted: Mon Jan 28, 2019 4:01 pm
by Cody Do 2F
Delta T is the change in temperature (Final Temperature - Initial Temperature) while Delta H is the change in Enthalpy.
Re: Delta H
Posted: Mon Jan 28, 2019 4:03 pm
by Adam Vuilleumier 2K
Temperature and heat are different things in chemistry. Temperature is measured in Kelvin or degrees Celsius, but heat is an energetic concept measured in joules.
Re: Delta H
Posted: Mon Jan 28, 2019 4:12 pm
by Ashe Chen 2C
Delta T indicates a change in temperature where delta H indicates a change in energy, or enthalpy
Re: Delta H
Posted: Mon Jan 28, 2019 4:59 pm
by Ray Guo 4C
An increase in T means that the surroundings have taken up some energy given out by the reaction. If a reaction system gives off energy then its own energy content has decreased, hence a decrease in enthalpy (H).