Molecular Physics | Thermodynamics Answers

How can we change two body system into one.

What is reduced mass of two body system

Explain MAXWELL first equation.

What is redberg constant.

A volume of 0.50 L of water at 16°C is put into an aluminum ice cube tray of mass 0.250 kg at the same temperature. How much energy must be removed from this system by the refrigerator to turn the water into ice at -8.0°C?

Determine the specific heat of a 335-gram alloy which is at the boiling point of water, and when put into 300 ml of 10°C H2O reaches equilibrium at 70°C.  How much heat is absorbed by this system? (cwater=1 cal/groC)

A stationary mass of gas is compressed without friction from an initial state of 0.4 m3 and 1.5 bar to 0.2m3 and 1.5 bar, the pressure remaining constant during the process. There is a heat transfer of 40 kJ of heat from the gas during the process. How much does the internal energy of the gas change? Plot the process roughly on Pressure vs Vol as well as Temperature vs Volume scale.

Calculate the probability that a harmonic oscillator en = (n + 1/2) nw is a . state with n an odd number if the oscillator is in contact with a heat bath / at temperature T

A body with the mass m 5 kg lies on an inclined plane and is connected to a solid cylinder with a mass M 10 kg by a massless rope (see sketch). The rope is wound on the solid cylinder. The inclined plane has a static friction of 0.12 and a sliding friction of 0.06. The body is at rest at the beginning.

a) At what critical angle can the body overcome static friction?

b) At the critical angle the body of mass m begins to slide down the plane. Its acceleration is slowed down by the rolling of the full cylinder. How big is the acceleration of the body and how big is the tensile force in the rope?

A 500kg polar bear stands on a round ice floe (diameter 4m), which swims in the Arctic Ocean. a) What is the minimum thickness of the clod so that the paws of the Polar bears stay dry? (ρ ice = 918 kg m3, ρsaltwater = 1025 kg m3) b) Now the polar bear climbs onto another floe with the same diameter and thickness of 0.5m! Because the polar bear is constantly warming up with its paws indicates the ice floe, it will begin to melt (spec Ice qs = 333.5 kJ kg), so that the polar bear and ice floe after a certain time sink as the meltwater drains away. Energy consumption per day of B¨ars: 78MJ. How many days does it take for the polar bear to start getting wet paws? to get.