5+ Year Member
- Jan 22, 2013
- Pre-Medical, Medical Student (Accepted)
There is a chart that lists certain properties of elements at 25ºC, and it shows that the density of manganese is 7.43g/cm3
What is the density of manganese at 1000°C?
A. Between1.00 and 2.00
B. Between 2.00 and 7.43
C. Between 7.43 and 9.00
D. Between 9.00 and12.00
I knew that B was the better answer, but just wanted some clarification as to why I would rule out option A.
The temperature increases, so the volume increases which lowers the density, so it is obviously not C or D. But because 7.43g/cm3 is its density at 25ºC, and since 1000ºC is a drastic increase in temperature, I felt like the density could have been decreased drastically to below 2. Is there something more concrete as to why I would rule this out, or is this just a judgement "pick the better answer choice" type problem.