A person lives in a house that has two rooms downstairs. The rooms are identical

Question

A person lives in a house that has two rooms downstairs. The rooms are identical to one another. On a hot summer’s day the person turns on a fan in a one of these rooms and then goes to work. The other room does not contain a fan. For security reasons all the doors and windows in both rooms are closed, and each room is very well insulated. When the person returns from work nine hours later will the room containing the fan be warmer or cooler than the room without the fan? You must provide a full explanation behind your choice.

Explanation / Answer

When the person returns from work nine hours later the room containing the fan will be warmer

because on a hot summers day heat will come down through RCC structure and the fan spreads the heat through out the room .The room is cooler when the room without fan there is no spread the heat through out the room

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