Molecular Physics | Thermodynamics Answers

Why does the polar bears furr fluff up during winter and lie flat during summer?

How does the space suit protect the astronaut from the extreme temperatures when he is outside the space craft?

An existing pipeline 16000m long and 750mm diameter supplies 36000m3/d. Ultimately 108000m3/d will be needed, so a second pipe will be laid besides the first. However, the immediate need is for 46800m3/d, so for the present the second pipe will be constructed for part of the way only. Find the second pipe’s diameter and length, assuming the total fall is unchanged.

Determine the volume of air inside a tank at a pressure of 2.0 x 10[sup]7[/sup] Pa . at atmp the air would occupy a volume of 2.5m[sup]3[/sup]

The highest natural atmospheric temperature ever recorded on Earth was 58°C (136°F), at El Azizia, Libya on September 13, 1922. The record low temperature was −89°C (−129°F), which occurred at the Soviet Vostok Station in Antarctica on July 21, 1983. What is the difference in the speed of sound in air for these two extreme temperatures? answer in m/s.

An Aluminum cup of 100cm[sup]3[/sup] capacity, is completely filled with ethanol at 25 degree C. How much ethanol, if any, will spill out of the cup if the temperature of both cup and ethanol is decreased to 22 degree C?

Hello there,

In our class we are doing heat capacity and we are using this formulae; Q=mcΔT. The problem is that I don't know if the answer will be in Joules, Kj or MJ.

Thank you,

Shubhi

If you could perfectly contain a quantity of helium 2 in such a way that you completely disallowed evaporation, then used the hadron collider to 'heat' what is contained,a) what would be the predicted state inside the containment and b) is there a predicted effect on the environment outside the containment

A 0.5 Kg sample of mercury at 240 K is to be brought to its boiling point, 337 C, and completely evaporated. how much heat would this take?

How much ice at -10C must be added to 0.50 Kg of water at 20 C if it all to melt leaving only water at 0 C?