According to this balanced chemical equation, what volume of C2H2 is required to form 40.0L

of CO2?

2C2H2(g) + 502(g) → 2H2O(g) + 4CO2(g)

A. 20.0L

B. 44.8L

C. 80.0L

D. 100 L

A. 20.0L

Explanation:

According to avogadro's law, equal moles of all gases occupy equal volumes at STP.

The given balanced equation is:

According to stoichiometry :

4 L of is formed by = 2 L of

Thus 40.0 L  of is formed by = of

Thus 20.0 L of is required to form 40.0L  of

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.