Question

9.8g of water vapor condenses on a soda can at 100.0°C.

Given:
Latent heat of vaporization 2260 J/g
Latent heat of fusion 334 J/g

i) State the phase change for the above process.
ii) Identify the formula used to calculate the heat transferred.
iii) Calculate the amount of energy transferred.
iv) Determine whether energy is released or absorbed.

Answer 1

i) Condensation: water vapor transforms into liquid water.

ii)

$$Q=mL$$

iii)

$$Q=(9.8)(2260)=22150\ J$$

iv) The energy is released.