Properties Of Solids And Liquids Question 70
Question: 1 g of a steam at 100°C melt how much ice at 0°C? (Latent heat of ice = 80 cal/gm and latent heat of steam = 540 cal/gm) [Pb. PET 2000]
Options:
A) 1 gm
B) 2 gm
C) 4 gm
D) 8 gm
Show Answer
Answer:
Correct Answer: D
Solution:
Suppose m gm ice melted, then heat required for its melting
Heat available with steam for being condensed and then brought to 0°C
therefore Heat lost = Heat taken therefore
therefore
Short trick: You can remember that amount of steam (m’) at 100°C required to melt m gm ice at 0°C is
