Podcast
Questions and Answers
What is the unit of ΔEsys?
What is the unit of ΔEsys?
- Kelvin
- Watt
- Joules (correct)
- Coulomb
What happens to the internal energy of a system when heat is added to it?
What happens to the internal energy of a system when heat is added to it?
- It increases (correct)
- It remains the same
- It becomes zero
- It decreases
When the system does work, what happens to its energy?
When the system does work, what happens to its energy?
- It becomes zero
- It loses energy (correct)
- It remains the same
- It gains energy
What is the significance of positive q?
What is the significance of positive q?
What happens to the internal energy of a system when it releases heat to its surroundings?
What happens to the internal energy of a system when it releases heat to its surroundings?
What is the direction of energy flow when w is negative?
What is the direction of energy flow when w is negative?
What is the result of the energy released by a gas as 84 J of work was done to compress it?
What is the result of the energy released by a gas as 84 J of work was done to compress it?
What happens to the energy utilized to do work when it is not used?
What happens to the energy utilized to do work when it is not used?
What is the significance of the convertibility of different forms of energy into heat?
What is the significance of the convertibility of different forms of energy into heat?
What is the result of a gas expanding and doing 72 J of work?
What is the result of a gas expanding and doing 72 J of work?
What is the condition under which most chemical reactions occur in laboratories and living systems?
What is the condition under which most chemical reactions occur in laboratories and living systems?
What is the sign of ΔEsys in an endothermic reaction?
What is the sign of ΔEsys in an endothermic reaction?
Which statement best defines the First Law of Thermodynamics?
Which statement best defines the First Law of Thermodynamics?
Which form of energy refers to the force used to transfer energy between a system and its surroundings?
Which form of energy refers to the force used to transfer energy between a system and its surroundings?
What is the Enthalpy of the Reaction primarily concerned with?
What is the Enthalpy of the Reaction primarily concerned with?
What is the role of work and heat in allowing systems to exchange energy?
What is the role of work and heat in allowing systems to exchange energy?
What is the key concept behind the Hess Law in calculating enthalpy changes of reactions?
What is the key concept behind the Hess Law in calculating enthalpy changes of reactions?
Which energy form can be transferred between two bodies at different temperatures?
Which energy form can be transferred between two bodies at different temperatures?
