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I have few question from 2009 destroyer.
q 7.
why are ClF5 AND PBr5 Polar ??
q8 what's wrong ? question
the answer is all molecules of an ideal gas have the same kinetic energy at constant temperature..
isn't that sentence right ?
chad said that at constant temperature, the kinetic energy is the same but the velocity is going to be different due to the mass difference.
what's the meaning difference btwn
" all molecules of an ideal gas have the same kinetic energy at constant temperature " and " the average kinetic energy of a gas is proportional to the absolute temperature "
these sentences have same meaning right ??
question 16
consider a 15g sample of butane (c4h10) how many carbon atomes are contained in this sample.
I looked up the solution and it didn't make any sense to me..
molecules = is the quantity of bonds between atoms right ?
example ) c4h10 = 14 molecules
the answer is so strange and I never understood what the heck it is.. and Chad never explained this thing either and I was so confused...
15gc4h10 divided by 58gc4h10
so I have mole of butane...
the answer did times by 6x10^23 molecules c4h10/1mole c4h10..
here... 6x10^23 is atom numbers right? number of molecules of c4h10 is 14 here not 6x10^23...
I don't know please explain...
I just started doing destroyer and it made me so sad yesterday....
is there any differences btwn 2009 destroyer and 2011 ?
q 7.
why are ClF5 AND PBr5 Polar ??
q8 what's wrong ? question
the answer is all molecules of an ideal gas have the same kinetic energy at constant temperature..
isn't that sentence right ?
chad said that at constant temperature, the kinetic energy is the same but the velocity is going to be different due to the mass difference.
what's the meaning difference btwn
" all molecules of an ideal gas have the same kinetic energy at constant temperature " and " the average kinetic energy of a gas is proportional to the absolute temperature "
these sentences have same meaning right ??
question 16
consider a 15g sample of butane (c4h10) how many carbon atomes are contained in this sample.
I looked up the solution and it didn't make any sense to me..
molecules = is the quantity of bonds between atoms right ?
example ) c4h10 = 14 molecules
the answer is so strange and I never understood what the heck it is.. and Chad never explained this thing either and I was so confused...
15gc4h10 divided by 58gc4h10
so I have mole of butane...
the answer did times by 6x10^23 molecules c4h10/1mole c4h10..
here... 6x10^23 is atom numbers right? number of molecules of c4h10 is 14 here not 6x10^23...
I don't know please explain...
I just started doing destroyer and it made me so sad yesterday....
is there any differences btwn 2009 destroyer and 2011 ?