View Full Version : Physics
shayshay
Jul19-06, 12:20 PM
Which Statement Is True?
A)it Takes More Heat To Raise The Temp Of A Large Amount Of Any Substance Than A Small Amount Of The Same Substance.
B)you Can't Tell How Much Heat It Will Take To Raise The Temp Of A Sample Unless You Know The Specific Heat And The Mass.
C)you Cannot Determine The Specific Heat Of A Substance If You Don't Have Any Water To Compare It With.
Math Is Hard
Jul19-06, 12:25 PM
which one do you think is true? and why?
shayshay
Jul19-06, 12:28 PM
C Because I Think Every Chemical Being Compared Should Be Compared To Water
Hootenanny
Jul20-06, 07:24 AM
C Because I Think Every Chemical Being Compared Should Be Compared To Water
Try again ...
Office_Shredder
Jul20-06, 08:08 AM
shayshay, why water? Why can't we compare everything to, say, mercury? Or ethanol?
thiotimoline
Jul20-06, 09:38 AM
Which Statement Is True?
A)it Takes More Heat To Raise The Temp Of A Large Amount Of Any Substance Than A Small Amount Of The Same Substance.
B)you Can't Tell How Much Heat It Will Take To Raise The Temp Of A Sample Unless You Know The Specific Heat And The Mass.
C)you Cannot Determine The Specific Heat Of A Substance If You Don't Have Any Water To Compare It With.
For a), ans is not definite because the difference in specific heat capacity may or may not be compensated by the difference in mass. For b), you're thinking of Q=mcT that's why you say specific heat capacity and mass is required in finding how much energy of heat required. I have to agree with you even though I'm not sure. For c), what's it gotta do with water?
I think my final answer is B.
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