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

Author Question: If the Q value of an endothermic reaction is 2.17 MeV, then the minimum kinetic energy needed in the ... (Read 136 times)

erika

  • Hero Member
  • *****
  • Posts: 522
on: Jul 28, 2018
If the Q value of an endothermic reaction is 2.17 MeV, then the minimum kinetic energy needed in the reactant nuclei if the reaction is to occur must be
  1.equal to 2.17 MeV.
  2.greater than 2.17 MeV.
  3.less than 2.17 MeV.
  4.exactly half of 2.17 MeV.

Question 2

Suppose the decay constant of radioactive substance A is twice the decay constant of radioactive substance B. If substance B has a half-life of 4 h, what's the half-life of substance A?
  1.8 h
  2.4 h
  3.2 h


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lauravaras

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

2

Answer to Question 2

3


erika

  • Member
  • Posts: 522
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Kyo and jitsu-concept of energy deficiency and excess from shiatsu. Kyo and jitsu-concept of energy deficiency and excess from shiatsu.
A typical reaction in which NAD+ acts as an oxidizing agent A typical reaction in which NAD+ acts as an oxidizing agent
The mitochondrion is the center of energy transformation in the cell The mitochondrion is the center of energy transformation in the cell
In the reaction C(s) + O2(g) CO2(g) carbon is __________. In the reaction C(s) + O2(g) CO2(g) carbon is __________.
Which reaction below represents Th decay by alpha emission? Which reaction below represents Th decay by alpha emission?
The leptin–melanocortin pathway of energy balance The leptin–melanocortin pathway of energy balance
Video: Bulk flow - Factors that influence bulk flow

For a complete list of videos, visit our video library