Which Of The Following Values Displays The Ph Of An Acid A.3 B.8 C. 12

Out of HF, HCl, HBr and HI, which has the lowest and highest boiling point and why?

Boiling point for the Acids mentioned is 19.5 °C HF, -85.05 °C HCL, -66 °C HBr and -34 °C for HI. The boiling point of a system depends upon the intermolecular interactions. Higher the strength of these interactions, higher is the value of boiling point.Now considering the above systems i.e HI, HBr, HCl dominant interactions would be van der Waals forces; as Hydrogen bonding in these systems is nearly impossible ( reason u can find in this link Which compound, HBr, HF, HCl, or HI, exhibits hydrogen bonding between its molecules? | Socratic ) Hence the boiling point of HI is highest because of it's big molecular size (the intermolecular van der Waals forces would be strongest between the large sized molecules in comparison to smaller ones- van der Waals forces ). This not the case with HF because the dominant forces are H-bondings, which are much more stronger intermolecular forces than van der Waal's forces. Hence the bp of HF is highest among the listed acids in contrast to the lowest molecular size among the listed molecules.

Is global warming a hoax?

To me, a few simple thought experiments made me certain it is not a hoax:If you put co2 gas into a transparent plastic bag, and ordinary air in another plastic bag and then put both bags in the sun - you will see that the bag of co2 becomes much warmer. See this experiment: The Greenhouse Gas Demo.The world is producing and consuming some 80 million barrels of oil every day. The vast majority of that goes into the air. Based on some googling, and then using half of that: One barrel of oil gives 150 kg of co2 to the atmosphere. That gives us about 4.38 billion tonnes of co2 added to the atmosphere each year.80 million barrels of oil could fill about 3815 olympic sized swimming pools.Imagine that bonfire and all that gray/black smoke!But since we burn it in tiny motors, all across the globe - we don't notice.On top of this comes natural gas production of 4.359.000.000.000 cubic metres annual.Don’t forget the 8.000.000.000 tonnes of coal that we burn each year.It seems so unlikely that this is not bad for climate that I am shocked that people say “go on, lets burn some more”.I know that there are three groups of people:Climatologists - people dedicating their life to science and research, of which more than 95% say that their understanding of the evidence tell them that global warming is real and caused by humans.Climate change “scepticals” - companies such as Exxon, Koch brothers, Donald Trump, ordinary people like you and me.Climate change “believers” - organizations like Greenpeace, and a whole bunch of tiny organizations, and ordinary people like you and me.Climatologists are scientists. Everything they do, is done according to scientific method. If you ask any scientist, they always answer in terms of research - they are in fact afraid of having their own opinions and beliefs. They have a lot to gain from proving that the cause for climate change is non-human - for example a Nobel price. Yet, they claim there is overwhelming evidence that say it is caused by humans.

Out of HF, HCl, HBr and HI, which has the lowest and highest boiling point and why?

Boiling point for the Acids mentioned is 19.5 °C HF, -85.05 °C HCL, -66 °C HBr and -34 °C for HI. The boiling point of a system depends upon the intermolecular interactions. Higher the strength of these interactions, higher is the value of boiling point.Now considering the above systems i.e HI, HBr, HCl dominant interactions would be van der Waals forces; as Hydrogen bonding in these systems is nearly impossible ( reason u can find in this link Which compound, HBr, HF, HCl, or HI, exhibits hydrogen bonding between its molecules? | Socratic ) Hence the boiling point of HI is highest because of it's big molecular size (the intermolecular van der Waals forces would be strongest between the large sized molecules in comparison to smaller ones- van der Waals forces ). This not the case with HF because the dominant forces are H-bondings, which are much more stronger intermolecular forces than van der Waal's forces. Hence the bp of HF is highest among the listed acids in contrast to the lowest molecular size among the listed molecules.