
Thermodynamics... in practice
Authored by Annamaria Bevilacqua
Chemistry, Physics
10th - 12th Grade
Used 6+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Chemical energy is
the energy stored within the structural units of chemical substances.
the energy associated with the random motion of atoms and molecules
energy available by virtue of an object's position
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the main principle of the First Law of Thermodynamics?
The energy in the universe is increasing
The energy in the universe is decreasing
The energy in the universe is constant
The energy in the universe is determined by the amount of heat present
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which statement is correct about heat?
Heat is a measure of the transfer of energy due to a temperature difference
Heat transfer is always from hot to cold
The heat gained by the surroundings equals the heat lost by the system
All answers are correct
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following processes always results in an increase in the energy of a system?
The system loses heat and does work on the surroundings
The system gains heat and does work on the surroundings
The system loses heat and has work done on it by the surroundings
The system gains heat and has work done on it by the surroundings
None of these is always true
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
According to the Second Law of Thermodynamics, which of the following will never decrease in value for an isolated system?
Temperature
Volume
Heat energy
Entropy
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What can be calculated using Hess's Law?
The enthalpy change of a chemical reaction
The energy used in a chemical reaction
The entropy change of a chemical reaction
All of these can be calculated using Hess's Law
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The entropy of a gas increases with increasing temperature
True
False
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