Question

2 кг снега, взятого при 0 градусов, превратили в пар. Какое количество теплоты потребовалось для этого?

Answer 1

L-удел.теплота парообразования
буква-закорючка похожая на л(лямда)-удел.теплота плавления.
Формулы правильные,посчитала надеюсь правильно)

Answer 2

Calculating the Heat Required to Turn 2 kg of Snow at 0 Degrees Celsius into Vapor

To calculate the heat required to turn 2 kg of snow at 0 degrees Celsius into vapor, we can use the formula:

Q = m * L

Where: - Q is the heat required - m is the mass of the substance (in kg) - L is the specific latent heat of fusion or vaporization (in J/kg)

Given: - m = 2 kg - T = 0 degrees Celsius

We need to find the specific latent heat of fusion or vaporization (L) for snow at 0 degrees Celsius.

Specific Latent Heat of Fusion or Vaporization for Snow

The specific latent heat of fusion or vaporization for snow at 0 degrees Celsius is 2260000 J/kg.

Calculation

Using the formula Q = m * L, we can calculate the heat required:

Q = 2 kg * 2260000 J/kg Q = 4520000 J

Therefore, the amount of heat required to turn 2 kg of snow at 0 degrees Celsius into vapor is 4520000 Joules.