Chap 6 Vocab Flashcards
Heat capacity
Amount of energy required to raise temp of an object by 1C
Specific heat capacity
Energy required to raise 1g of substance by 1C
Molar heat capacity
Energy to raise 1 mol of substance by 1C
Hesse’s law
Going to a set of products from set of reactants
Change1=change 2+3+4
Standard enthalpy heat transfee
Enthalpy change that accompanies formation of 1 mol of a compound at 25C from its elements
Fossil fuels
Consists of carbon based molecules derived from decomposition of a once living organism
Petrolium
Mix of hydrocarbons that is presented in certain rock strata and maybe extracted
Natural gas
Occurs underground, big flamable
Coal
Comprised of carbonized plant matter
Greenhouse effect
Warming effect caused by earth’s atmosphere
Syngas
Mixture of carbon monoxide + hydrogen obtained by coal gasification
Energy
Capacity to do work or transfer heat
Law of conservation of energy
Energy is finite, cannot be created or destroyed
Potential energy
Energy due to position or composition
Kinetic energy
Energy due to motion of an object
Heat
Energy transferred between 2 objects caused by temp difference
Work
Force acting over distance
Pathway
Links in chemical equation
State function
A property independent of pathway
System
Part of universe where attention is directed
Surroundings
Everything in the universe surrounding thermodynamics
Exothermic
Reaction where heat is released
Endothermic
Heat enters
Thermodynamics
Study of energy
