The latent heat of fusion for water is 33.5 × 10⁴ j/kg, while the latent heat of vaporization is 22.6 × 10⁵ j/kg. what mass m of water at 0 °c must be frozen in order to release the amount of heat that 2.48 kg of steam at 100 °c releases when it condenses?

16.78kg

Explanation:

Data Given from question

Heat of fusion of water Lf=33.5×10^4 J/kg Lf=33.5×10^4 J/kg

Heat of vaporization Lv=22.6×10^5 J/kg Lv=22.6×10^5 J/kg

Mass of the steam condensed Ms=2.48 kgms=2.48 kg

From the condition given in the question

Heat Released during freezing = Heat released during condensation

Where Mw= Mass of water

MwLf=MsLv

MwLf=MsLv

Mw=MsLv÷Lf

Mw=MsLv÷Lf

Mw=2.48 kg×22.6×10^5 J/KG÷ 33.4×10^4 J/kg

Mw=2.48 kg×22.6×10^5 J/kg ÷33.4×10^4 J/kg

Therefore mass of water would be

Mw=16.78 kg

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.