Question

Вы смешивали горячюю воду массой 18 кг температурой 100 с холодной водой массой 22 кг температурой 20 градусов сколько градусов будет смесь ??

Answer 1

$\frac{18*100+22*20}{18+22}= \frac{2240}{40}=56$

Ответ: 56 градусов

Answer 2

Mixing Hot and Cold Water

To calculate the final temperature of the mixture after combining hot water with a mass of 18 kg at a temperature of 100°C and cold water with a mass of 22 kg at a temperature of 20°C, we can use the principle of conservation of energy.

The formula to calculate the final temperature of the mixture is:

m1 * c1 * (Tf - Ti1) = -m2 * c2 * (Tf - Ti2)

Where: - m1 = mass of hot water - c1 = specific heat capacity of water - Tf = final temperature of the mixture - Ti1 = initial temperature of hot water - m2 = mass of cold water - c2 = specific heat capacity of water - Ti2 = initial temperature of cold water

First, let's find the specific heat capacity of water and then use the formula to calculate the final temperature of the mixture.

Specific Heat Capacity of Water

The specific heat capacity of water is approximately 4.18 J/g°C.

Calculation

Using the formula mentioned above, we can calculate the final temperature of the mixture.