Which of the following processes is endothermic?
the freezing of water
the combustion of butane
the melting of ice
the chemical reaction in a "hot pack" often used to treat sore muscles
Question 8
Sitting down on a cold metal bench, the bench feels cold because _____.
no heat is transferred, so it feels cold
heat is absorbed by the bench from your body, leaving you feeling it as cold
heat is absorbed into your hand from the bench, so it feels cold
heat transfers from the ground to the bench