This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain how increasing the efficiency of cars could help contain greenhouse warming. What will be ... (Read 19 times)

asan beg

  • Hero Member
  • *****
  • Posts: 570
on: Jul 28, 2018
Explain how increasing the efficiency of cars could help contain greenhouse warming.
 
  What will be an ideal response?

Question 2

Suppose reaction A involves the breaking of bonds and 75 J of energy, reaction B involves the breaking of bonds and 40 J of energy, and reaction C involves the making of bonds and 125 J of energy.
 
  What is the overall A + B + C reaction energy? Is this an exothermic or an endothermic reaction? Explain.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ong527

  • Sr. Member
  • ****
  • Posts: 285
Reply #1 on: Jul 28, 2018
Answer to Question 1

More cars being more efficient would mean smaller use of fossil fuels overall,
reducing emissions of CO2 . Of course, if people just drive more ...

Answer to Question 2

In making bonds, the total energy release was 125 J. This is more than the energy
supplied to break bonds, 75 J + 40 J = 115 J. Overall in this reaction, bonds are made and
net energy is supplied by the chemical system to the outside. This is an exothermic reaction,
because energy of 10 J = 125 J - 115 J can be extracted from the system when the
reaction occurs.


asan beg

  • Member
  • Posts: 570
Reply 2 on: Jul 28, 2018
Gracias!

lkanara2

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

The greenhouse effect: heat trapping by earth's atmosphere. The greenhouse effect: heat trapping by earth's atmosphere.
A Need for Improved Water-Use Efficiency in Plants A Need for Improved Water-Use Efficiency in Plants
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
Undrape top leg and apply warming effleurage to lateral leg, hip, and foot in distal to proximal ... Undrape top leg and apply warming effleurage to lateral leg, hip, and foot in distal to proximal ...
The climate is changing rapidly, and greenhouse gases are the most likely cause. The climate is changing rapidly, and greenhouse gases are the most likely cause.
The melting of glaciers and ice sheets is making an increasing contribution The melting of glaciers and ice sheets is making an increasing contribution
Video: Carbon fixing adaptations Animation

For a complete list of videos, visit our video library