WorksheetsThermodynamics and Kinetics
Total questions: 12
Worksheet time: 24mins
Which of the following is the correct definition of entropy?
a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume
a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.
accompanied by or requiring the absorption of heat
accompanied by the release of heat.
Which of the following best describes Le Chatelier's Principle?
states that energy can neither be created nor destroyed
a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system
stating that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.
Choose all of the following that affect the rate of reactions?
surface area
temperature
concentration
None of the answers affect rate of reaction
For the reaction: Which direction would the chemical reaction flow if the pressure is increased?
right
left
Which of the following definitions best describes enthalpy?
stating that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.
a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.
states that energy can neither be created nor destroyed
Which of the following has the greatest entropy?
chocolate milkshake
vanilla milkshake
cookies n cream milkshake
strawberry milkshake
For the following reaction: Which direction would the chemical reaction flow if H2 is removed?
right
left
Use the potential energy diagram below to answer the following question: What type of reaction is shown?
endothermic
exothermic
Use the potential energy diagram below to answer the following question: What is the heat content of the reactants?
40 kj
10 kj
60 kj
20 kj
Use the potential energy diagram below to answer the following question: What is the activation energy of the reaction?
40 kj
60 kj
10 kj
20 kj
Which of the following is an example of an endothermic reaction?
Baking a cake
Freezing water
Condensation forming on glass
Heat being produced from methanol reacting with nitric acid
Which of the following is an example of an exothermic reaction
Steam forming from boiling water
frying an egg
the temperature of acetic acid drops when baking soda is added to it
Making ice cream
