Question

Пробірку з водою, температура якої 0ºС, занурили в стакан зі снігом, температура якого теж 0ºС. Оберіть правильне твердження. * A)сніг почне танути; Б)ніяких змін не відбуватиметься; В)вода почне кристалізуватися;

Answer 1

Ответ:

А

Объяснение:

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Answer 2

The Experiment:

In this experiment, a test tube filled with water at a temperature of 0ºC is submerged in a glass of snow, which is also at a temperature of 0ºC. The question is to determine what will happen in this scenario. Let's evaluate the options provided:

A) The snow will start to melt (танути).

When the test tube filled with water at 0ºC is placed in contact with the snow at the same temperature, the heat from the water will transfer to the snow. This heat transfer will cause the snow to melt and turn into water. Therefore, option A is correct.

B) No changes will occur (ніяких змін не відбуватиметься).

Since the water in the test tube and the snow in the glass are both at 0ºC, there will be a heat exchange between them. Heat will flow from the water to the snow until both reach an equilibrium temperature. As a result, the snow will melt, and the water level in the test tube will increase. Therefore, option B is incorrect.

C) The water will start to crystallize (почне кристалізуватися).

When the water in the test tube is in contact with the snow, which is also at 0ºC, the heat transfer will cause the snow to melt, not the water to crystallize. Therefore, option C is incorrect.

Based on the above analysis, the correct answer is A) The snow will start to melt (сніг почне танути).