Molecular Physics | Thermodynamics Answers

Consider the steady flow of steam through a steam turbine at 6Mpa

A fluid undergoes a reversible adiabatic compression from pressure 1 mpa bar & volume 0.3m3,according to the law pv1.3= constant. Determine

A, work done

B, heat transfer

C, change internal energy

D, change of entropy

a fluid undergoes a reversible adiabatic compression from pressure 1 mpa bar & volume 0.m3, according to the law pv1.3=constant. determine the entropy

consider two state system in thermal equilibrium, where the upper state has an energy 3.09 kj/mol higher than the lower state. if we have total population of thousand molecules distributed between these states, at what temperature (in c) will 15.6% of the molecules be in the upper state?

if two forces of the same magnitude F are acting at an angle of 120 degree with each other the magnitude of their resultant will be

1.    If water is cooled from 50^OC to -5^OC, what is the temperature change on the Celsius, Fahrenheit and Rankine scales?

Imagine a special air filter placed in a window of a house. The tiny holes of the filter allow only air molecules moving faster than a certain speed to exit the house, and allow only air molecules moving slower than that speed to enter the house from the outside. Explain why such an air filter would cool the house, and why the second law of thermodynamics makes building such an air filter an impossible task.

A member of the Congress proposed a scheme to produce energy as follows. Water molecules (H₂O are to be broken apart to produce hydrogen and oxygen. he hydrogen is then burned (that is, combined with oxygen), releasing the energy in the process. The only product of this combustion is water, so there is no pollution. In light of the second law of thermodynamics, what do you think of this energy producing scheme?

10 mol of N₂ gas expands at constant temperature of 300 K from 2 L at 8 atm to 6 L at 4 atm. How much work is performed by the gas?

The specific heat capacity of copper metal is 0.38 J /K.g. Calculate 

the temperature rise of a 100 g bar of copper when 250 J of heat are 

transferred to it.