Thermodynamics
This is the first Law of Thermodynamics.
What is "Energy cannot be created or destroyed but can be changed from one form to another"?
This is the equation for the heat of reaction.
What is: ΔH reaction = ∑nΔH products – ∑nΔH reactants?
This is how temperature affects entropy.
What is a direct relationship?
This is the amount of joules 100 Calories is equal to.
What is 418000 joules?
This is required in the collision of molecules in order for them to react.
What is the right orientation and speed/energy?
This is what energy does in an exothermic reaction.
What is being released?
This is the amount of kJ released if 8 moles of H20(g) were produced from its elements.
What is 1934.4 kJ?
This is the difference between a spontaneous reaction and a non-spontaneous reaction.
What is the requirement of energy?
This is the amount of energy in kilojoules required to boil 33 grams of water.
What is 74.58 kJ?
This is how catalysts speed up reactions.
What is creating an alternate reaction pathway? (also accept lowering activation energy)
This is the order of phases as molecules absorb energy.
What is solid, liquid, gas?
This is the heat of reaction for CH4(g) + 2O2(g) → CO2(g) + 2H2O(l).
CH4(g): -74.8 kJ/mol
O2(g): 0 kJ/mol
CO2(g): -393.5 kJ/mol
H2O(l): -285.8 kJ/mol
What is -890.3 kJ/mol?
This is the entropy (+/- ΔS) of the reaction if water goes from liquid to solid.
What is -ΔS?
This is the amount of energy in joules required to change the temperature of 50.0 g of water from 30 degrees Celsius to 60 degrees Celsius.
What is 6270 J?
This is the final temperature of a substance weighing 100 g at 36 °C, that has a specific heat of 0.456 J/g °C, when 700 J are added.
What is 51.35 degrees Celsius?
This is the second Law of Thermodynamics.
What is "The disorder of the universe is always increasing"?
This is the amount of energy required for the combustion of 3 moles of methanol.
What is -2178 kJ?
This is the entropy (+/-ΔS) of 2H2O2(l) → 2H2O(l) + O2(g).
What is +ΔS?
This is the specific heat of aluminum if mixing 40g of aluminum at 170 °C with 50g of water at 20 °C resulted in a final temperature of 42 °C.
What is 0.82 J/g °C?
This is the ΔH(net) for 2NO₂(g) → N₂O₄(g) based on:
N₂(g) + 2O₂(g) → 2NO₂(g) (ΔH = +67.7 kJ)
N₂(g) + 2O₂(g) → N₂O₄(g) (ΔH = +9.7 kJ)
What is -58.0 kJ?