Question

WORKS
Q.1. A certain freezing process requires that room
temperature be lowered from 38°C at the
rate of 5°C every hour. The room temperature
after 7 hours the process begin is ......
Sol.​

Answer 1

Answer:

3°C

Step-by-step explanation:

Current room temperature= 38°C

rate of lowering of temperature -5°C per hour

so, after seven hours temperature will be 7×-5=-35°C

therefore the room temperature= 38+(-35) = 3°C

Answer 2

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The collision of the particles with the walls of the vessels give rise to the pressure of the gas.