Question

how much energy is released or absorbed when 1 gm of steam at 100 C turns to ice at 0 C

Answer 1

Heat released during phase transitions,
steam → water 540 cal & water → ice 80 cal
Heat released during fall in temperature of water (100°→0°) is 1(100)=100 cal
Total heat released is 540+100+80=720 cal

Answer 2

Q = 540 + 100 + 80

= 720 calories

mark it as a brainlist answer