Question

Какое количество энергии выделится при конденсации 200 г водяного пара. взятого при температуре 100 градусов?

Answer 1

Q=λm=2260*0.2=452 Дж

Answer 2

Calculating the Energy Released from Condensation of 200g of Water Vapor at 100°C

To calculate the energy released from the condensation of 200g of water vapor at 100°C, we can use the formula:

q = m * L

Where: - q = energy released (in joules) - m = mass of the substance undergoing a phase change (in grams) - L = latent heat of vaporization (in J/g)

Given: - m = 200g - t = 100°C

We need to find the latent heat of vaporization (L) at 100°C to calculate the energy released.

Latent Heat of Vaporization at 100°C

The latent heat of vaporization of water varies with temperature. At 100°C, the latent heat of vaporization of water is approximately 2257 J/g.

Calculating the Energy Released

Using the formula q = m * L, we can calculate the energy released:

q = 200g * 2257 J/g q ≈ 451,400 J

Therefore, the energy released from the condensation of 200g of water vapor at 100°C is approximately 451,400 joules.