Question

A glass window 0.43 cm thick measures 83 cm by 31 cm. Part A How much heat flows through this window per minute if the inside and outside temperatures differ by 17 C∘

Answer 1

SOLUTION,

L= 0.43 m =0.0043 m = thickness of window

A= (0.83 m)(0.31 m)=0.83*0.31 m² = area of window

= temperature different =17K

Lets the  heat flows through this window per minute is =Q

We know that,

Where k is constant , k=0.8 W/mk

or

ANSWER =

OR