Interpretation:
Whether the energy is transferred to the gas or from the gas when it undergoes condensation needs to be determined.
Concept Introduction :
When two substances in physical contact with each other, exchange no heat energy, this type of condition is known as thermal equilibrium.
Answer to Problem 4E
Energy transferred from the gas to the surroundings.
Explanation of Solution
During the condensation process, the energy of the substance reduces or energy moves towards higher energy state (gas)tolower energy state (liquid).
Thus, when a gas undergoes condensation, it changes from gas to liquid state. The molecules tend to come close and intermolecular distance between them decreases. This results in decrease in the energy of the molecule.
Thus, energy is transferred from gas in the condensation process.
Chapter U5 Solutions
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