If you choose Other users you can create regular accounts just fine. However, if you need to setup time limits for some accounts, it is impossible to do so. It is a feature exclusive to Your family. Not all time-restricted users I want to create are my family, and not everyone is okay with sharing their info with Microsoft.
By this means, a catalyst is produced which is readily reduced at 300Â°C - 350Â°C (570 - 660OF) but with which loss of activity caused by sintering is not a problem during several years, normal operation at temperatures up to 350Â°C (660OF).
Best Answer: As you increase the temperature the rate of reaction increases. As a rough approximation, for many reactions happening at around room temperature, the rate of reaction doubles for every 10Â°C rise in temperature.The more finely divided the solid is, the faster the reaction happens. catalyst is to help to increase the rate of chemical reaction by changing the energy pathway to a lower activation energy pathway. That is increasing the frequency of collisions between reactants. The higher the collision per unit the higher the rate of reaction.