Question

BOTANY U
ZOOLOGY B
PHYSICS
CHEMISTRY i
Exam End Time : 10:0
Duration: 3:00:00 Time Left : 1:
The enthalpies of formation of CO2(g), H20 (1) and C2H4(g) are respectively -393.5, -286 and +52.3 kJ mol-l the enthalpy change for the
combustion of C2H4(9) is
(A) -1306 kJ mol-1
(B) -1411.3 kJ mol-1
(C) -509.7kJ mol-1
(D) -731.5kJ mol-1
his​

Answer 1

Answer:

B is correct I think

please follow me

Answer 2

Explanation:

hope you understand it