Question

Воде,находящегося при температуре 100 градусов,передано 4,6 МДж эенергии. Какое количество воды превратится в пар? Прошу)**

Answer 1

Q=L*m
m=q/L=4,6*10^6/2,3*10^6=2 кг

Answer 2

Calculating the Amount of Water Converted to Steam

To calculate the amount of water that will be converted to steam when a certain amount of energy is transferred to it, we can use the concept of specific heat and latent heat of vaporization.

Given: - Temperature of water: 100 degrees Celsius - Energy transferred: 4.6 MJ

Specific Heat and Latent Heat of Vaporization

The specific heat of water is approximately 4.18 J/g°C, and the latent heat of vaporization of water is approximately 2260 J/g.

Calculation

To calculate the amount of water that will be converted to steam, we can use the following steps:

1. Calculate the energy required to raise the temperature of the water from 100°C to its boiling point. 2. Calculate the energy required to convert the water at its boiling point to steam. 3. Divide the total energy transferred by the energy required to convert 1 gram of water to steam to find the amount of water converted.

Step 1: Energy to Raise Temperature

The energy required to raise the temperature of the water from 100°C to its boiling point (100°C) can be calculated using the specific heat formula:

Q = m * c * ΔT

Where: - Q = energy - m = mass of water - c = specific heat of water - ΔT = change in temperature

Step 2: Energy to Convert to Steam

The energy required to convert the water at its boiling point to steam can be calculated using the latent heat of vaporization formula:

Q = m * L

Where: - Q = energy - m = mass of water - L = latent heat of vaporization of water

Step 3: Calculation

After calculating the energy required for both steps, we can then divide the total energy transferred (4.6 MJ) by the energy required to convert 1 gram of water to steam to find the amount of water converted to steam.

I hope this helps! Let me know if you need further assistance.