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Questions and Answers
Which type of system allows for the exchange of both mass and energy with its surroundings?
Which type of system allows for the exchange of both mass and energy with its surroundings?
- Closed system
- Open system (correct)
- Thermal system
- Isolated system
What does the First Law of Thermodynamics state regarding energy?
What does the First Law of Thermodynamics state regarding energy?
- Energy can only be converted from one form to another. (correct)
- Energy can be created and destroyed.
- Energy is constant and cannot change form.
- Energy loss is inevitable in any process.
In an endothermic process, what happens to heat?
In an endothermic process, what happens to heat?
- Heat is released to the surroundings.
- Heat remains unchanged.
- Heat is absorbed from the surroundings. (correct)
- Heat equilibrium between system and surroundings is established.
According to Hess's Law, what must be done when reversing a reaction?
According to Hess's Law, what must be done when reversing a reaction?
Which of the following describes entropy in a system?
Which of the following describes entropy in a system?
What is the formula for calculating the change in enthalpy for a reaction?
What is the formula for calculating the change in enthalpy for a reaction?
How is work classified when it is done on the system?
How is work classified when it is done on the system?
Which statement about an isolated system is true?
Which statement about an isolated system is true?
What is the relationship between Gibbs Free Energy and spontaneity of a reaction when ΔG is negative?
What is the relationship between Gibbs Free Energy and spontaneity of a reaction when ΔG is negative?
In a collision theory context, which of the following is a requirement for effective collisions to produce a chemical reaction?
In a collision theory context, which of the following is a requirement for effective collisions to produce a chemical reaction?
What does the rate law equation rate = k[A]^x[B]^y signify?
What does the rate law equation rate = k[A]^x[B]^y signify?
What characterizes an irreversible process?
What characterizes an irreversible process?
What occurs at the transition state of a reaction?
What occurs at the transition state of a reaction?
In the formula ΔG = ΔH - TΔS, what does a positive value for ΔS imply?
In the formula ΔG = ΔH - TΔS, what does a positive value for ΔS imply?
Which statement about activation energy is true?
Which statement about activation energy is true?
If a system loses 354 J of heat and does 94 J of work, what is the correct formula to find the change in internal energy?
If a system loses 354 J of heat and does 94 J of work, what is the correct formula to find the change in internal energy?
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