is the average random kinetic energy of the molecules decreasing ? ( In cooling curve)
To determine if the average random kinetic energy of molecules is decreasing in a cooling curve, we need to understand the relationship between temperature and kinetic energy.
According to the kinetic theory of gases, the average kinetic energy of gas molecules is directly proportional to the temperature of the gas. As the temperature decreases, the kinetic energy of the molecules also decreases.
In a cooling curve, the temperature of a substance is gradually decreasing over time. As a result, the average random kinetic energy of the molecules is indeed decreasing.
To verify this, one could measure the temperature at different intervals during the cooling process. By plotting these temperature measurements on a graph, it would be possible to observe the decreasing trend of the temperature and infer that the average kinetic energy of the molecules is decreasing accordingly.