Energy & Matter
1. Energy
2. Temperature
3. Heat
4. Phases (states) of Matter
5. Phases Changes
6. Chemical Equilibrium
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community
Ask the community for help and clear up your study doubts
University Rankings
Discover the best universities in your country according to Docsity users
Free resources
Our save-the-student-ebooks!
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
Energy & Matter Overview: Potential & Kinetic Energy, Temperature, Heat, Phases, Equilibri, Study notes of Biology
An in-depth exploration of various concepts related to energy and matter, including potential and kinetic energy, temperature scales, heat, phases of matter, phase changes, chemical equilibrium, and specific heat. It covers topics such as forms of energy, temperature, heat units, specific heat capacity, calorimetry, and the behavior of matter in different phases. Students can use this document as a valuable resource for understanding complex concepts in physics and chemistry.
Typology: Study notes
Pre 2010
1 / 15
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download Energy & Matter Overview: Potential & Kinetic Energy, Temperature, Heat, Phases, Equilibri and more Study notes Biology in PDF only on Docsity!
Energy & Matter
- Energy
- Temperature
- Heat
- Phases (states) of Matter
- Phases Changes
- Chemical Equilibrium
Energy
- Potential Energy- stored energy, Ep = mad
- Kinetic Energy- energy of motion, Ek = (mV^2 )/
- Forms of Energy- mechanical, heat, light, electrical, chemical
Temperature Scales
F = 1.8C + 32 K = C + 273
Scale Abs zero
Water freezes
Room temp
Body temp
Water boils F -451 32 68 98.6 212
C -273 0 20 37 100
K 0 273 293 310 373
Heat
- Associated with motion of particles in a substance, amount of mass of substance, & specific heat
- Related to mass & motion of particles, atomic vibration & electron movement
- Units- 1Cal = 1kcal, 1000cal = 1Cal, 1cal = 4.18J
- Food calories- Cal or kcal
Calorimetry
- Measuring energy in food or energy released or absorbed in a chem rxn
Matter Phases (States)
- Solid- slowly vibrating fixed particles, strong bonds; own volume & shape; ice, iron, acetamide
- Liquid- particles move randomly, weak bonds; definite volume, assumes shape of container; water, oils, Hg
- Gas- rapidly randomly moving particles; assume volume & shape of container; water vapor, H 2 , CH 4
Phase Curve, H 2 O
Chemical Equilibrium
- Point in reversible rxn where rate of product formation equals rate of reactant formation 2SO 2 + O 2 2SO 3
- Right or forward rxn- favors products
- Left or back rxn- favors reactants
Endothermic Equilibrium
- Reactant + Heat Product
- Adding heat favors right rxn
- Removing heat favors left rxn
Exothermic Equilibrium
- Reactant Product + Heat
- Adding heat favors left rxn
- Removing heat favors right rxn