Calculate the Heat Released (KJ)in the Reaction of 3 $\rarr$ C₂H₆(g)
Given:
2C₂H₂(g)+ 5O₂(g)

question 82

Short Answer

Calculate the heat released (kJ)in the reaction of 3.50 g of acetylene (C₂H₂)and excess hydrogen gas to form ethane gas:
C₂H₂(g)+ 2H₂(g) $\rarr$ C₂H₆(g)
Given:
2C₂H₂(g)+ 5O₂(g) $\rarr$ 4CO₂(g)+ 2H₂O(g), $\Delta$ H = -2320 kJ/mol
2C₂H₆(g)+ 7O₂(g) $\rarr$ 4CO₂(g)+ 6H₂O(g), $\Delta$ H = -3040 kJ/mol
2H₂(g)+ O₂(g) $\rarr$ 2H₂O(g), $\Delta$ H = -572 kJ/mol

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Definitions:

Natural Selection

A process in evolutionary biology where individuals or species that are better adapted to their environment tend to survive and reproduce more than those less adapted.

Gene Investment Theory

A theory suggesting that individuals are genetically predisposed to invest resources in ways that maximize the passing of their genes to the next generation.

Survival of the Fittest

A concept in evolutionary biology describing the mechanism by which organisms better adapted to their environment tend to survive and produce more offspring.

Short Answer

A method of response in exams or surveys that requires a brief and direct explanation or fact.