physicsquestions1,whyisasteamburnmoredamagingthanaburnfromliquidwateratthesametemperature?a)condensingsteamreleasesalotofenergy,soitcanheatmorefleshfasterthanliquidwaterb)liquidwatercondectsheatawayfromyourskin

Question

physics questions
1,why is a steam burn more damaging than a burn from liquid water at the same temperature?
a)condensing steam releases a lot of energy,so it can heat more flesh faster than liquid water
b)liquid water condects heat away from your skin faster than steam does
2,when a liquid turns to a solid,it_____
a)gives off energy
b)absorbs energy
3,is the food in a refrigerator cooled by vaporization of the refrigerating fluid,or by condensation of the fluid?
a)condensation
b)vaporization

Answer 1

1 a)condensing steam releases a lot of energy,so it can heat more flesh faster than liquid water
水蒸气凝结大量吸热
2 a)gives off energy 凝固放热
3 b)vaporization 蒸发吸热,吸热才能降温