Forms of Energy
Energy cannot be created or __________.
What is destroyed?
A unit of energy
What is a joule (or calorie, or kilojoule)?
The ability to do work or supply heat.
What is energy?
For an exothermic reaction, ΔH is ________.
What is negative?
Energy created by a change in temperature and/or by a chemical reaction.
What is heat?
Heat flows from warmer to __________ objects.
What is cooler?
The HI BrONClF molecules have a ΔH0form equal to _____.
What is zero?
This type of energy is stored in an object because of its position.
What is potential energy?
When two objects at different temperatures come into contact with each other and reach the same temperature, they have reached thermal _________.
What is equilibrium?
1 calorie = ______ J
What is 4.18?
An insulated device that is used to measure heat exchange.
What is a calorimeter?
The number of calories of heat required to raise the temperature of 525g of aluminum from 13.0˚C to 47.8˚C. (cAl=0.21cal/g˚C)
What is 3800 cal?
The energy associated with the movement of air.
What is wind energy?
Stored energy in chemical bonds is called ______.
What is chemical potential energy?
The specific heat of water is _____ or _____.
What is 4.18J/g ˚C or 1.00 cal/g ˚C?
The amount of heat required to raise the temperature of 1 gram of substance by 1˚C.
What is specific heat?
The mass of water that would have its temperature raised from 22.5˚C to 94.1˚C with the addition of 5.1kcal of heat.
What is 71 g?
If heat is given off, it is called an _____ reaction.
What is exothermic?
The equation for heat gained or lost is q=
What is mcΔT?
The conservation of energy in equation form.
What is -mcΔT=+mcΔT ?
Rank these in order of highest to lowest entropy:
ice, steam at 150C, liquid water, steam at 200C
What is steam at 200C, steam at 150C, liquid water, and ice?