Molecular Physics | Thermodynamics Answers

At a party 0.50 kg tube ice at -10 degrees C is placed in 3.0 kg of iced tea at 20 degrees C . At what temperature will be the final mixture be?The tea can be considered as water.Assume a heat flow sorroundings and the container.
Heat gain = Heat loss

whty gases are compressable

When you take a bath, how many kilograms of hot water (49 degrees Celsius) must you mix with cold water (13 degrees Celsius) so the temperature of the bath is 36 degrees Celsius? The total mass of water (hot and cold) is 191 kg. Ignore any heat flow between water and it's external surroundings.

using the law of conservation of energy,to prove that the total energy of a system is always conserved due to the change in its position?give few examples in favour of your anwer.

a particular solid is very hard and has a very high melting point. In solid state it is a non conductor & its melt is a conductor of electricity. classify the solid
a) metallic b) molecular c)network d) ionic

car travels between 2 stations .60 km apart. Left first station, accelerates for 10.4 s at 1 m/s^2 and travels @ a constant speed until nearing the second station, when it brakes at 2.0 m/s^2 in order to stop at the station. How long did this trip take

is heat considered as potential energy

When very hot Iron is placed in cool water, does the decrease in Iron temp equal the increase in water temp.? And 2) does the Iron and the water reach the same temperature? and 3) Is the final temperature of the Iron and Water halfway between the intial temps of each?

9A square plate of side 10 cm is made of a metal of linear expansivity
210−5/K. As the plate is heated from 30oC to 100o, the area of one face
of the plate will increase to -------------

A block of wood having specific gravity 0.85 floats on water. Some oil of specific gravity 0.82 is poured on the surface of water until the the wooden block is just immersed. calculate the fraction of block lying below the surface of water in the second case.