The rate of a standard reaction is 0.01840 m/s at 25 oc. it is determined that this is too fast, and that the rate should be reduced to 0.0046 m/s. what temperature should the reaction be run at to achieve this? a. 45 oc b. 20 oc c. 15 oc d. 5 oc e. 0 oc

Hi there,

Your answer is given in the image attached above

Option B. 20 oC

Explanation:

Thinking process:

The initial reaction takes place at: 0.01840 M/s at 25 oC.

However, the rate must be reduced to 0.0046 M/s.

It is most likely that a temperature of 20 °C is used her. This is because it offers sufficient kinetic energy to effect the reaction rate of the reaction substances.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3