
Interpretation: The two thermodynamic quantities need to be explained and the reason of taking the system’s point of view needs to be explain
Concept introduction: The study of energy is termed as

Answer to Problem 1RQ
Two thermodynamic quantities are a number and a sign.
Explanation of Solution
There are two parts of thermodynamic quantities:
- A number, which gives magnitude of charge
- A sign, which indicates the direction of flow. The reflection of system’s point of view is by the sign.
For example, on flowing of a quantity of energy into the system, q is + x . The indication of increase of system’s energy is by the positive sign. On the other hand, the flowing out of energy from the system is represented by q is equal to − x . The indication of decrease of energy of system is by the negative sign.
Sign, which is one of the thermodynamic quantities, reflected the system’s point of view.
Chapter 10 Solutions
World of Chemistry, 3rd edition
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