When a gas expands adiabatically it does work on it’s sorroundings although there is no heat input to the gas. Where does this energy come from ?

One mole of an ideal gas expands adiabatically from temperature T_1 to T_2 .the workdone by the gas is_____.

An ideal gas at 27^@C and a pressure of760 mm of mercury is compressed isotiiermally until its volume is halved. It is then expanded adiabatically to twice its original volume. If the value of gamma for the gas is 1.4. Calculate the final pressure and temperature of the gas.

When a system is isothermally insulated from it’s sorroundings and can exchange energy in form of the work only, what we call the system ?

A certain mass of gas is allowed to expand adiabatically to 6 times its original volume. Find the relation between the initial and final pressure. gamma=1.4 .

Does a gas work when it is expanded isothermally ?

The salt on heating does not give brown coloured gas is:

What kind of internal energy does a perfect gas possess?

16kg oxygen gas expands at STP to occupy double of its original volume. The work done during the process is:

10 moles of hydrogen at N.T.p is compressed adiabatically so that its temperature becomes 400^@C . How much work in Joule is done on the gas ? What is the increase in internal energy of the gas. Given R=8.31"jmole"^-1k^-1 and gamma=1.4 .