Classwork $2-6$ or $8$ November $2024$

You may get a score of $2\mathrm{.}5,1\mathrm{.}5$ or $0$ depending on your performance and attitude during the classwork. Those who do not attend the classwork will get $0$ and those who come late will get at most $1\mathrm{.}5.$

Bring your pencil, eraser, notes and calculator to the classwork. Cell phones are not allowed.

Do not make noise and do not spoil the classwork like standing up$,$ walking around, making jokes etc.

The inner and outer surfaces of a wall with a height of $5$ m and width of $6$ m brick wall of thickness $30$ cm and thermal conductivity $0\mathrm{.}69\frac{W}{m}*C$ are maintained at temperatures of $20C$ and $5C,$ respectively. Find the rate of heat transfer through the wall in watt.

$Q^{}=k*A*\frac{T}{x}$