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La metilhidrazona, CH 6 N 2 , se usa comnmente como combustible para cohetes. Cuando se queman 3,71 g de metilhidracina en un calormetro de

La metilhidrazona, CH 6 N 2 , se usa comnmente como combustible para cohetes. Cuando se queman 3,71 g de metilhidracina en un calormetro de bomba que contiene 1500 g de agua, la temperatura aumenta de 25,0 o C a 39,5 o C. Si la reaccin produce 1,30 x 10 3 kJ/mol CH 6 N 2 , cul es el calor capacidad del calormetro? La capacidad calorfica especfica del agua es 4.184J/g o C.

CH 6 N 2 (l) + 5 O 2 (g) ----> 2 N 2 (g) + 2 CO 2 (g) + 6 H 2 O (l)

a) 500J/ o C b) 950J/ o C c) 1500J/ o C d) 3200J/ o C e) 5400J/ o C

Encontr, de la reaccin: 104650 J, al agua: 91002 J. Se supone que el exterior es 0. Pero no s qu hacer con el calormetro.

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