" The quantity "(2U)/(fkT)" represents (where "U=" internal energy of gas) "

What do you mean by internal energy (U) of a gas ?

Which of the following diagram correctly represents the variation of internal energy (U) of gas under expansion at constant temperature.

Which of the following diagram correctly represents the variation of internal energy (U) of gas under expansion at constant temperature.

An ideal monoatomic gas is taken through the thermodynamic states AtoBtoCtoD via the paths shown in the figure. U_(A),U_(B),U_(C)andU_(D) represent the internal energies of the gas in the states A, B, C and D respectively. Which is the wrong statement from the following ?

If Delta U represents the increase in internal energy and W the work done by the thermodynamic system, then:

Explain concept of internal energy (U).

An ideal gas expands from volume V _(1) to V _(2). This may be achieved by either of the three processes : Delta U be the change in internal energy of the gas, Q be the quantity of heat added to the system and W be the work done by the system on the gas. Identify which of the following statements is false for Delta U ?

What is the unit of k in the relation U=(ky)/(y^(2)+a^(2)) where U represents the potential energy, y represents the displacement and a represents the maximum displacement i.e., amplitude ?