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Anna71 [15]
2 years ago
5

In a system when energy is transformed from one form to another

Chemistry
1 answer:
maw [93]2 years ago
4 0
An energy transformation<span> is the change of </span>energy<span> from </span>one form to another<span>. </span>Energy<span> transformations occur everywhere every second of the day. There are many different </span>forms<span> of </span>energy<span> such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical.</span>
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9. A student wished to prepare ethylene gas by dehydration of ethanol at 140oC using sulfuric acid as the dehydrating agent. A l
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We have that the the liquid is

  • C_2H_5OH (ethanol
  • And at a condition of H_2SO4 as catalyst and temp 170

From the question we are told

  • A student wished to prepare <em>ethylene </em>gas by <em>dehydration </em>of ethanol at 140oC using sulfuric acid as the <em>dehydrating </em>agent.
  • A low-boiling liquid was obtained instead of ethylene.
  • What was the liquid, and how might the reaction conditions be changed to give ethylene

<h3>Ethylene formation</h3>

Generally the equation is

2C_2H_5OH------CH3CH_2O-CH_2CH_3+H_20

Therefore

with ethanol at 140oC

The product is diethyl ethen

The reaction at 170 ethylene will give

C_2H_5OH-------CH_2=CH_2+H_2O( at a condition of H_2SO4 as catalyst and temp 170)

Therefore

The the liquid is

  • C_2H_5OH (ethanol

For more information on Ethylene visit

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