8. Determine whether (yes, no) in a closed system under standard conditions (T = 298 K) the reaction will spontaneously proceed:
CaC2(t) 2H2O(l) = Ca(OH)2(t) C2H2(g)
Also write an equation for a similar reaction for tetraaluminum tricarbide. What are such reactions called? Are they reversible or irreversible?

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