Question

CH4 (g) + 2O2 (g)arrow CO2 (g) + 2H2O(l)H = -890 kJ (which statement is true)

Answer 1

4 th option is correct

Answer 2

srry wait wrong ans face palm give me a sec

Answer 3

2 nd option is correct u see here -ve sign shows exothermic reaction

Answer 4

option b is correct

Answer 5

and for 2 mole u get 890 then for 1 mole u ll get 445 ok

Answer 6

thank you