Recent content by Raven1972

Thanks very much! That was exactly what I was looking for :smile:

1. An airtight glass container contains a bowl of water. The temperature of the water is measured. If the air is extracted out of the container what happens to the water? 2. A) The water starts boiling and the temperature increases B) The water starts boiling and the temperature...

In this case I believe it supposed to be water Thanks for the answer. It has confirmed my own conclusions...

I've found out by a process of deduction that the answer is supposed to be 2.5 gcm3. Is this wrong?

1. A Cube of lengths 5cm each. The cube weighs .54kg. What is its specific weight? 2. Answers: A)6 g cm3 B)3 g cm3 C) 2.5 g cm3 D) 2 g cm3 3. 5x5x5 = 125cm3 540g/125= 4.32 g cm3 which is none of the above. Could someone verify that I'm correct before I make an idiot of myself when...

I stand corrected...thanks for the info though, seems I have my answer now at least...

So if Kerosene is a compound of many different substances...would it not be possible that as these melt at differing temperatures it could cause the ball to rise and float..like wax on liquid wax?

However If you put a ball of most substances into a liquid form of those substances they would probably sink and absorb latent heat from the liquid until they melt. The only reason that it would rise and hover or float would be if it had air trapped in it when the ball was made which I presume...

I think you're right with the assumption that floating and hovering are spurious answers. But I haven't been able to find anywhere that mentions whether Kerosene acts like conventional liquids or other. As I said before my assumption is that as it freezes it would contract and become more dense...

I ran into this question as well and could not find any definitive answer. It obviously has to do with densities. How dense is frozen kerosene compared to liquid kerosene (810 kg/m3)? Now with water (atypical) frozen water is less dense than liquid water thence it floats however many...