Question

ТЕРМІНОВО!!! У склянці міститься 200 см3 гарячої води, температура якої 80 градусів. Маса склянки дорівнює 150 г. Яку кількість теплоти отримало навколишнє середовище під час охолодження води в склянці до 25 градусів? БУДЬ ЛАСКА, З ДАНО, РОЗВ'ЯЗАННЯМ І ПОЯСНЕННЯМ ДО КОЖНОЇ ДІЇ ( ЧОМУ МИ РОБИМО САМЕ ТАК), БО Я НІЦ В ТІЙ ФІЗИЦІ НЕ ШАРЮ((

Answer 1

Відповідь: 53 130 Дж

Пояснення:

Answer 2

To calculate the amount of heat transferred to the surrounding environment during the cooling of water in the glass, we can use the formula:

Q = mcΔT

Where: - Q is the amount of heat transferred - m is the mass of the water - c is the specific heat capacity of water - ΔT is the change in temperature

Let's break down the problem step by step:

Step 1: Calculate the mass of water in the glass

The problem states that the glass contains 200 cm3 of hot water with a temperature of 80 degrees Celsius. To calculate the mass of water, we need to convert the volume to grams using the density of water, which is approximately 1 g/cm3.

Volume of water = 200 cm3 Density of water = 1 g/cm3

Therefore, the mass of water can be calculated as: Mass of water = Volume of water x Density of water

Step 2: Calculate the amount of heat transferred

The problem states that the water is cooled down to 25 degrees Celsius. We can calculate the change in temperature (ΔT) as the final temperature minus the initial temperature.

Initial temperature = 80 degrees Celsius Final temperature = 25 degrees Celsius

Therefore, the change in temperature can be calculated as: ΔT = Final temperature - Initial temperature

Now, we need to use the specific heat capacity of water to calculate the amount of heat transferred. The specific heat capacity of water is approximately 4.18 J/g°C.

Specific heat capacity of water = 4.18 J/g°C

Using the formula mentioned earlier, we can calculate the amount of heat transferred:

Q = mcΔT

Substituting the values we have:

Q = (Mass of water) x (Specific heat capacity of water) x (Change in temperature)

Step 3: Calculate the amount of heat transferred to the surrounding environment

Now, we can substitute the values we calculated in the previous steps into the formula to find the amount of heat transferred to the surrounding environment.

Please note that the specific heat capacity of the glass is not provided in the problem. However, we assume that the heat capacity of the glass is negligible compared to the heat capacity of the water.

Let's calculate the values and find the amount of heat transferred.

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