Question

ПОЖАЛУЙСТА СРОЧНОООО Як зміниться внутрішня енергія склянки води кімнатної температури, якщо: а) її нагріти до температури 40 °С; б) охолодити до 10 °C?

Answer 1

Ответ:

1) зменшиться

2) збільшиться

Answer 2

Changes in Internal Energy of Water at Room Temperature

The internal energy of a substance is the sum of its kinetic energy and potential energy at the molecular level. It depends on factors such as temperature, pressure, and molecular structure. In the case of water, the internal energy can change when the temperature of the water is altered.

a) Heating the water to 40°C:

When the water is heated to 40°C, its internal energy will increase. Heating causes the water molecules to gain kinetic energy, leading to an increase in their average speed and overall internal energy. The increase in temperature corresponds to an increase in the average kinetic energy of the water molecules.

b) Cooling the water to 10°C:

When the water is cooled to 10°C, its internal energy will decrease. Cooling causes the water molecules to lose kinetic energy, resulting in a decrease in their average speed and overall internal energy. The decrease in temperature corresponds to a decrease in the average kinetic energy of the water molecules.

It's important to note that the change in internal energy is directly related to the change in temperature. The specific heat capacity of water is relatively high, meaning it requires a significant amount of energy to change its temperature. As a result, the change in internal energy of water is relatively large compared to other substances.

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