100
What is temperature?
When in Kelvin, it is directly proportional to the average kinetic energy.
100
What are volume and moles?
It is the pair of constants needed for pressure to be directly proportional to Kelvin(absolute) temperature.
100
What is the y axis?
In a reaction profile, it's the axis on which energy is found.
100
What is ΔT?
It is the only variable in Q = mcΔT that can cause Q to be negative.
100
What is activation energy?
It is the change between Hmax and H of reactants.
200
What is vibrational motion?
It is the type of motion between the bonds of a molecule.
200
What is 100 K?
If the volume tripled at constant pressure and moles, and the new temperature is 300 K, what was the original temperature?
200
What is potential energy?
It is the name given to the difference between the total energy of molecules and their energy of movement.
200
What is n=CV?
When a volume of solution is given, it is the formula used to get moles for ΔH/n .
200
What is 3?
It is the number of peaks in a reaction with two fast steps and a slow step, and we're not talking about tango .
300
What is attractions or bonds?
As heat is absorbed, these are overcome when a liquid becomes a gas.
300
What is PV/ (nR) ?
It is the expression for temperature obtained by isolating it from the ideal gas law.
300
What are intramolecular bonds?
It is the type of potential energy bonds between aspirin's carbon and hydrogen bonds.
300
What is 3.45 kJ?
If 2 H2O + 345 kJ --> 2 H2 + O2 , it is the amount of energy needed to disassociate 0.360 g of water.
300
What is -3 kJ?
It is the ΔH for a reaction whose Ae is 12, Hmax = 20 and its Hproducts = 5, all in kJ?
400
What is hydrogen?
Between all the diatomic molecules, it is the fastest molecule at 25 C
400
What is 100 L?
If 28 g of diatomic nitrogen is at 1000 K and at 83.1 kPa, what is its volume?
400
What is uracil? (U)
STE flashback related to this course: what molecule makes the strongest intermolecular bonds with adenine in RNA?
400
What is -12 kJ ?
If A+ B --> C + 34 kJ and B--> D + 22 kJ, it is ΔH for
A+D --> C ?
400
What are heroin and cocaine?
The two compounds that can lower the activation energy of bowfly maggots when they decompose a corpse.
500
What is the square root of 8 or 2.8?
It is the ratio of helium's average molecular speed to that of diatomic oxygen.
500
What is density in g/L?
What is the quantity and unit of PM/(RT), where M = molar mass of an ideal gas?
500
What is condensation of water?
It is the exothermic reaction responsible for making you feel uncomfortable when you walk into a steamy bathroom.
500
What is the sum of the average of the two initial temperatures?
In mixing problems , it is the the most simplified formula that can be used for the final temperature when two samples of water of equal mass are mixed.
500
What is N2?
It is the diatomic molecule with the highest bond energy, hence its low reactivity.