$5.$ There is a wall $8[$m$^2]$ with a thickness of $20[$cm$].$ The inner temperature is $600[]$ and the outer temperature is $250[].$ The heat conductivity of the wall is $2[$kcal$/$m$.$hr$.$ C$],$ calculate the heat transfer rate.

$6.$ The whole day happens through the furnace wall. The thickness of the nobi is $200[$mm$].$ Average thermal intensity$\mathrm{.}5.$ When $3\mathrm{.}3[$kcal$/$mh r$.],$ what is the heat resistance per $1$ Novik $[$m$^2]?$

$7.$ The thickness of the furnace wall is $200[$mm$],$ and the outside is insulated with $75[$mm$]$ asbestos. The inside of the wall

If the temperature is $400[]$ and the external temperature is $38[],$ find the amount of heat lost during $3[$hr$]$ in Novik $10[$m$^2].$ The average thermal conductivity of Novik and asbestos is $3\mathrm{.}3,0\mathrm{.}13[$kcal$/$mhr$.].$

$8.$ There is a paddle with a thickness of $20[$cm$].$ The inner wall of the furnace is $900[]$ and the outer wall is $370[].$ side of the furnace wall

When the enemy is $10[$m$^2],$ how many $[$kcal$/$hr$]$ are the calories lost per unit time?

$($However$,$ the thermal conductivity of the furnace wall is $3\mathrm{.}2[$kcal$/$m$.$hr$].)$

$9.$ There is a three$-$story brick wall. The internal thermal resistance is $1\mathrm{.}5$kcal$/$hr$..$

$1\mathrm{.}3$kcal$/$hr C$,0\mathrm{.}25$kcal$/$hr$.$ It is $.$ When the internal temperature is $760$ and the external wall temperature is $38,$ what is the temperature between the second and third walls?

$10.$ In Section $1,$ the outside of the tank was insulated with $32[$mm$]$ thick glass wool $($k$=0\mathrm{.}037$kcal$/$m$.$hr$),$ and the inner surface of the glass wool was $35[]$ and the outer surface was $18[].$ What is the heat loss $[$kcal$/$hr$]$ per $100[$cm$^2]$ of surface area?