What is the volume, in \( dm^{3} \), of ethane gas, \( C_{2}H_{6}(g) \), produced when \( 0.25~dm^{3} \) of ethyne, \( C_{2}H_{2}(g) \) reacts with \( 0.40~dm^{3} \) of hydrogen gas, \( H_{2}(g) \)?
All volumes are measured under the same conditions.
\( C_{2}H_{2}(g)+2H_{2}(g)\rightarrow C_{2}H_{6}(g) \)