Branch of chemistry that is concerned with energy changes
How are cells governed?
Cells are governed by the laws of physics and chemistry
Energy is:
The capacity to do work
How many states of energy are there and what are they named?
There are two states and they are Kinetic and Potential energy
What is Kinetic energy
Kinetic energy is the energy of motion
What is potential energy?
Potential energy is stored energy
Although it only exists in two states there are many forms of energy including:
Mechanical, heat, sound, electrical, light, and radioactivity.
What is the most convenient way to measure energy?
Heat
1 calorie is?
The heat required to raise 1 gram of water 1 degree Celsius and it must be lower case
Energy flows into the biological word from?
The sun
Photosynthetic organisms get there energy from
The sun
The energy harvested by photosynthetic organisms is stored in?
Potential energy in chemical bonds
Oxidation is:
Atom or a molecule that loses an electron
Reduction is:
Atom or molecule that gains an electron
Oxidation-Reduction Reactions(redox) are always
paired
The first law of thermodynamics states:
Energy cannot be created or destroyed, it can only change from one form to another and during each conversion some energy may be lost as heat
The second law of thermodynamics states:
Entropy (disorder) is continuously increasing, Energy transformation proceed spontaneously to convert matter from more ordered/less stable to less order/more stable form
Free Energy. G =
Energy available to do work
G = H - TS
H = Enthalpy, T = Temperature, S = Entropy (unavailable energy)