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Explain the following: a) One gram of pulverised wood burns faster than one gram piece of wood. b) An increase of 10K in temperature rarely doubles the kinetic energy of particles but this much increase in temperature may be enough to double the rate of reaction

Explain the following:
a) One gram of pulverised wood burns faster than one gram piece of wood.
b) An increase of 10K in temperature rarely doubles the kinetic energy of particles but this much increase in temperature may be enough to double the rate of reaction

Grade:Upto college level

1 Answers

Sanket Sunil Gadge
13 Points
one year ago
(a) The rate of reaction depends upon the surface area of reacting species. Powder form has more surface area than a peace of wood. Therefore pulverised wood burns faster than one gram piece of wood.
 
 
(b) An increase of 10K is not enough to double the kinetic energy because the molecular
speed is not going to change significantly whereas the rate of reaction doubles.
 
 
 

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