Question

Which equation represents the standard enthalpy change of formation of ethanol, C2H5OH?
A 2C(g) + 3H2(g) + 2
1 O2(g) → C2H5OH(l)
B 2C(s) + 3H2(g) + 2
1 O2(g) → C2H5OH(l)
C 2C(s) + 3H2(g) + 2
1 O2(g) → C2H5OH(g)
D 2C(g) + 6H(g) + O(g) → C2H5OH(l)

Answer 1

Select the equation where the product is formed from its elements in their standard state.

Answer 2

OHHH....Thankyouuuuuuu!

Answer 3

i was getting confused between B and C

Answer 4

what's the answer?

Answer 5

C

Answer 6

no B

Answer 7

from which pastpaper?