Question

heating systems based on circulation of steam are more efficient
a building than those based on circulation of hot water
A body cools from 80 C to 50 in 5 minutes Calculate the time it takes to cool
from 60 C to 30 C. The temperature of the surroundings is 20 °C
2​

Answer 1

Answer:

Explanation:

Steam at 100  DEGREE possesses more heat than the same mass of water at 100  DEGREE One gram of steam at 100 DEGREE  possesses 540 calories of heat more than that possesses by 1 gm of water at 100  DEGREE. That is why heating systems based on the circulation of steam are more efficient than those based on circulation of hot water.

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