Molecular Physics | Thermodynamics Answers

Calculate the one temperature at which Fahrenheit and Celsius thermometers agree with each other

A thermometer which was not accurately calibrated indicates -0.5°c at the lower fixed point, and the 106°c at the upper fixed point. What temperature does the thermometer register when the temperature is 60°c.

The electrical resistance of a platinum wire of zero degree celsius is 9.8 ohmes and 11.0 ohmes at 100 degree celsius. calculate the temperature when the resistance is 10.4 ohms assuming that the change in electrical resistance of the conductor is proportional to the change in temperature

A woman weighing 75 kg stands on a spring scale in elevator. During the first 3 seconds of motion from rest, the tension T in the hoisting cable is 8300 N. The total mass of the elevator , woman scale is 750 kg.

1.Find the vertical acceleration of the elevator.

2.Find the reading R of the scale in Newtons during this interval.

3.Find the upward velocity of the elevator at the end of a 3 seconds.

each group of solar cells is arranged in a rectangle 1.2 mx2.8m.the solar cells are situated in a region where 260w of solar energy is recieved per square m of the cells ,the electric output of each group of solar cells is a current of 2.5 with a potential difference of 86v.calculate teh efficency of the solar cells

A woman weighing 75 kg stands on a spring scale in elevator. During the first 3 seconds of motion from rest, the tension T in the hoisting cable is 8300 N. The total mass of the elevator , woman scale is 750 kg.

1.Find the vertical acceleration of the elevator.

2.Find the reading R of the scale in Newtons during this interval.

3.Find the upward velocity of the elevator at the end of a 3 seconds.

Three indistinguishable particles are to be distributed in two cells. Find possible number of

macrostates and corresponding number of microstates.

A 10-ft³ vessel of hydrogen at a pressure of 305 psia is vigorously stirred by paddles until the pressure becomes 400 psia. Determined (a) ∆U,and (b) W. No heat is transferred, cv= 2.434 Btu/lb.R

One liter of air is cooled at constant pressure until its volume is halved, and then is

allowed to expand isothermally back to its original volume. Draw the process on

the PV diagram.

An ideal gas expands isothermally, performing 3.40x103 J of work in the process.

Calculate (a) the change in the internal energy of the gas, and (b) the heat

absorbed during the expansion.