- #1
- 1,440
- 7
You know the hot weather we have here in Spain. So we have to use ice cubes when we drink water usually in summer in order to refresh a little ourselves. I would never recommend you to come here in summer if you are not an enemy.
Well, some day I was pouring an ice cube (it almost had no water film in his surface) with a stainless steel spoon. As you can realize, the spoon temperature was greater than the ice cube one. I feel the ice cube sticked on the spoon surfice. Surely you have had this experience when you are not capable of unstick the ice cube although you move furiously the spoon.
I wonder if this not agree with the second principle of thermodynamics. The process is:
i) A thin water layer is formed in the ice surfice when it gets into contact with spoon surfice, because this one has higher temperature.
ii) this water layer has to be frozen again in order to weld both bodies. And the heat has to come from the spoon or the ice cube.
What is happening?. It seems more logical that all ice have to became liquid. It seems that I am cooling the spoon locally, although it has a greater temperature.
I try to match this event with 2nd principle.
Well, some day I was pouring an ice cube (it almost had no water film in his surface) with a stainless steel spoon. As you can realize, the spoon temperature was greater than the ice cube one. I feel the ice cube sticked on the spoon surfice. Surely you have had this experience when you are not capable of unstick the ice cube although you move furiously the spoon.
I wonder if this not agree with the second principle of thermodynamics. The process is:
i) A thin water layer is formed in the ice surfice when it gets into contact with spoon surfice, because this one has higher temperature.
ii) this water layer has to be frozen again in order to weld both bodies. And the heat has to come from the spoon or the ice cube.
What is happening?. It seems more logical that all ice have to became liquid. It seems that I am cooling the spoon locally, although it has a greater temperature.
I try to match this event with 2nd principle.