From which of the following do spiral galaxies form?
a. rapidly cooling protogalactic clouds
high-density protogalactic clouds
rapidly spinning protogalactic clouds
colliding/merging protogalactic clouds

around 24.85 miles per hour

, divide the length value by 1.60

the biggest ocean wave that was ever recorded was 70+ feet tall.

here, we have to get the effect of temperature, the reaction which is exothermic.

as the temperature increase the concentration of n₂o₄ will decrease and the formation of product will be favorable.

the left to right reaction is exothermic.

the reaction is n₂o₄⇄2no₂.

now the reaction from left to right has the heat of reaction 14 kcal. thus this reaction is exothermic.

as per thermodynamics δg = δh - tδs (where, δg = gibbs free energy, δh = heat of the reaction, δs = entropy and t = temperature).

for the favorable reaction δg must be negative. thus the reaction from left to right will be favorable. also as the temperature increase the rate of the reaction from left to right will increase.

paper chromatography is an analytical method used to separate colored chemicals or substances. it is primarily used as a teaching tool, having been replaced by other chromatography methods, such as thin-layer chromatography. the mobile phase is a solution that travels up the stationary phase, due to capillary action.