Warning:
JavaScript is turned OFF. None of the links on this page will work until it is reactivated.
If you need help turning JavaScript On, click here.
The Concept Map you are trying to access has information related to:
chapter5.1,5.2 and 5.3, Energy and Change Energy -capacity to do work/ suppy heat Potential energy, Energy and Change Systems -the part of the universe under study. 2. closed systems - exchange only energy with their surroundings, Heat(Q) - transfer of energy from hotter object to cooler object Thermodynamics - heat energy moves or changes Enthalpy(H) - total energy of a substance - energy stored inside chemical bonds, Energy and Change Energy -capacity to do work/ suppy heat electrical energy, Kinds of thermodynamic processes Nuclear -nucleus of an atom contain alot of energy - nuclear binding energy holds everything together nuclear fission - splitting an atom, Enthalpy change (ΔH) -difference between the enthalpy of the reactants and the enthalpy of the product in a reaction How to measure enthalpy changes? Determine heat change by measuring the temperature change of the system, In Laboratory Calorimeter - measure enthalpy changes for chemical and physical reaction c, specific heat capacity(J/g°c), Heat(Q) - transfer of energy from hotter object to cooler object Thermodynamics - heat energy moves or changes 2nd law of thermodynamics - energy changes normally are not 100% -total amount of entropy in theuniverse is always increasing, In Laboratory Calorimeter - measure enthalpy changes for chemical and physical reaction ΔΗ=Q/n (KJ/mol), Q=m⋅c.ΔT Q=m⋅c⋅ΔT where Q=heat (J) m=mass (G) c=capacity (J/g⋅°C) ΔT=Tf(final temprature)- Ti(initial temperatue) same units as energy - joules (J)