Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 127 kj is given off per mole of c2h4 reacting, how much heat (in kj) is released when 10.1 kg of c2h6 forms? enter a positive number since released implies a negative number. enter to 0 decimal places.

42672 kJ

Explanation:

Chemical reaction:

C₂H₄ + H₂ → C₂H₆ + heat

Now we calculate the number of moles of ethane C₂H₆:

number of moles = mass / molecular weight

number of moles of ethane = 10.1 / 30 = 0.336 kmoles = 336 moles

And determine the heat released:

if      127 kJ are released when 1 mole of C₂H₆ is produced

then X kJ are released when 336 moles of C₂H₆ is produced

X = (127 × 336) / 1 = 42672 kJ

brian made this table to organize his notes on changes of state. depostion is a change of state that has the wrong energy change listed. it is utilized to collect data as a portion of the development means and in restricted conditions which may be applied at test.

a deposition in the authority of the united states or research for development in the authority of canada includes the catching of affirmed. the out-of-court verbal assertion of a spectator that may be lessened to a printed record for succeeding application for discovery purposes.