Aheat flux meter attached to the inner surface of a 3-cm-thick refrigerator door indicates a heat flux of 25 w/m² through the door. also, the temperatures of the inner and the outer surfaces of the door are measured to be 7°c and 15°c, respectively. determine the average thermal conductivity of the refrigerator door. 0.0938 w/m. c

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°