A/ Compute the quantity of heat released by 25.0 g of steam initially at 100.0oC, when it is cooled to 34.0°C and by 25.0 g of water initially at 100.0oC, when it is cooled to 34.0°C. b/ Suppose you put your hand into this steam or this water (it is not recommended!), in which case your hand will be burnt more severely?Explain. The heat of fusion of water is 2.256×106J/kg and the specific heat of water is 4.19×103J/kg. K

When put into steam

Explanation:

When a certain amount of steam at boiling temperature condenses (turning into water), the amount of heat released is

where in this case

m = 25.0 g = 0.025 kg is the mass of steam at 100.0°C

is the latent heat of vaporization of water

So,

Instead, the amount of heat released when the water at 100.0°C is cooled down to 34.0°C is given by

where

m = 25.0 g = 0.025 kg is the mass of water

is the specific heat of water

is the change in temperature

Therefore,

Since , we can say that your hand will burn more in the first case.

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.