The speed (v) at which sound travels through air is dependent upon the temperature of the air and follow the equation: v= 331m/s + 0.6 m/s
/Degree Celsius* T.
Determine the speed of sound in the following:
a.
One sunny day when the outdoor temperature is 39 degrees
Celsius.
b. In Baguio, during Christmas eve with the temperature of 8
degrees Celsius.
C.
At night time in Tagaytay when the temperature is 20 degrees
Celsius.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

the answer is d. embryo