Molecular Physics | Thermodynamics Answers

One of the tallest buildings in the world has a height of 1671 feet. Assume that this height was measured on a winter day when the temperature was 16°C. You could use the building as a sort of giant thermometer on a hot summer day by carefully measuring its height. Suppose you do this and discover that the building is 0.581 foot taller than its official height. What is the temperature, assuming that the building is in thermal equilibrium with the air and that its entire frame is made of copper?

Gas is confined in a tank at a pressure of 11.0 atm and a temperature of 25.0°C. If two-thirds of the gas is withdrawn and the temperature is raised to 75.0°C, what is the pressure of the gas remaining in the tank?

A rigid tank contains 1.50 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 25.0 atm to 5.00 atm. Assume the volume of the tank and the temperature of the gas remain constant during this operation.

A brass telephone wire has essentially no sag between poles 35.0 m apart on a cold day when the temperature is -20.0°C. How much longer is the wire on a summer day when the temperature is 35.0°C? If we change the kind of wire copper, how much longer is it during summer? Which is longer?

An electrostatic force of 20N is exerted on a charge of 8.0 x 10 3 C at point P in

an electric field. What is the magnitude of the electric field intensity at point P?

The expression for the number of molecules in a Maxwellian gas having speeds in the range vto v+ dv is

dNv= 4πN(m÷2πkbT)^3/2 v^2exp[-(mv^2÷2kbT)]dv using this relation, obtain an expression for most probable speed

Discuss the sedimentation in brownian motion and show that during sedimentation, particle concentration decreases exponentially as height increases

Calculate the temperature at which root mean square speed of gas molecules is double of its speed at 27°c pressure remaining constant

Your mother asked you to do the laundry for the day. She reminded you that some of the

clothes are used by your father in the farm. The clothes are soiled and greasy. She even

instructed you to save resources and energy because we are in a state of pandemic due

to Covid-19. As a student of Physical Science and with the knowledge on the effect of

intermolecular forces on substances, how are you going to perform the task in such a way

that energy is not wasted?