Question

C + O2 ------- CO2
∆H = -393.5 kJ ,the ∆U for the reaction is
a) -787.0 kJ
b)+393.5 kJ
c)+787.0 kJ
d) -393.5 kJ​

Answer 1

Answer:

d) -393.5 kj...............

Answer 2

$\huge \tt d) \: \: - 393.5 \: kj$