Question

2. How much energy is released when 1gm
of steam at 100°C turns to ice at 0°C ?
1) 100 cal
2) 540 cal [ ]
3) 640 cal
4) 720 cal. I need full explanation step by step​

Answer 1

Answer:

4) 720 cal.

Explanation:

from ice to water = 80cal

0° to 100°= 100

from water to steam = 540

when u add them u get

from ice to steam 720cal heat is required and 720cal heat is released when steam is converted to ice.