calculating heat

To calculate heat given the mass, specific heat and change in temperature we use the formula Q=MCdeltaT. this means that the heat in joules is equal to the mass X specific heat X change in temperature. We can use this formula to solve for any of the given variables even if it is not heat. For instance we can calculate the mass if given the heat in joules, specific heat, and change in temperature.

here are some ex problems

https://www.youtube.com/watch?v=txEDPJom6CU

https://www.youtube.com/watch?v=0jKHtBJNAYM

https://www.youtube.com/watch?v=EpLBZT8J3Q8

here are some more links
http://www.bbc.co.uk/schools/gcsebitesize/science/triple_aqa/calculating_energy_changes/energy_from_reactions/revision/3/

http://www.colorado.edu/physics/phys1110/phys1110_fa12/LectureNotes/Thermal.pdf

Phase cahnges and heat/cooling curves

As heat is added to a substance it undergoes some changes. Changes are changes in state which is a physical change where intermolecular bonds are broken. Melting and boiling points are determined by the vapor pressures of the solid and liquid states. At 0 degrees celsius ice and liquid water have the same vapor pressure. at 100 degrees celsius water vapor and atmospheric pressure are equal.

http://people.uwplatt.edu/~sundin/114/l114-36.htm

here are some helpful links
http://study.com/academy/lesson/what-are-heating-and-cooling-curves.html

http://www.kentchemistry.com/links/Matter/HeatingCurve.htm

https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/liquids-and-solids-11/phase-changes-90/heating-curve-for-water-394-3655/

https://www.youtube.com/watch?v=YG77v1PwQNM