
IB Energetics
Authored by Cindy Ong
Chemistry
11th Grade
Used 14+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What do we mean by the term "standard conditions"?
1atm, 20C and 1moldm3
1atm, 0K and 1moldm3
10atm, 273K and 10mol/dm3
100kPa, 298K and 1mol/dm3
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Define Endothermic by picking the correct statements
ΔH is positive
Energy is taken in from the surroundings (temperature goes down).
Energy is given out to the surroundings (temperature goes up).
· Products have less energy than the reactants
products have more energy than the reactants
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Define the term Exothermic by picking the correct statements
Products have less energy than the reactants
ΔH is negative
ΔH is positive
Energy is given out to the surroundings (temperature goes up).
products have more energy than the reactants
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Match the definition to the correct term.
The enthalpy change that accompanies a reaction in the molar quantities shown in a chemical reaction under standard conditions with all reactants and products in their standard states.
The enthalpy of formation
The enthalpy of reaction
The enthalpy of combustion
The enthalpy of neutralisation
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Match the definition below to the correct term.
The enthalpy change that takes place when one mole of a substance is formed from its elements under standard conditions, with all species in their standard states.
The enthalpy of neutralisation
The enthalpy of combustion
The enthalpy of formation
The enthalpy of reaction
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The enthalpy change when one mole of covalent bonds in a gaseous molecule is broken under standard conditions
Bond enthalpy
Enthalpy of atomisation
Enthalpy of lattice dissociation
Entropy (ΔS°)
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which change of state is exothermic?
CO2(s) → CO2(g)
H2O(l) → H2O(g)
NH3(g) → NH3(l)
Fe(s) → Fe(l)
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