Thermodynamics ...

In changing the state of thermodynamics from A to B state, the heat required is Q and the work done by the system is W. The change in its internal energy is 

First law of thermnodynamics is given by

The first law of thermodynamics is concerned with the conservation of

A system perform work $$\bigtriangleup W$$ when an amount of heat $$\bigtriangleup Q$$ added to the system the corresponding change in the internal energy is $$\bigtriangleup U$$. A unique function of the intial and final states (irrespective of the mode of change ) is

If the amount of heat given to a system be 35 joules and the amount of work done by the system be - 15 joules, then the change in the internal energy of the system is

For an idea gas, in an isothermal process

In an isothermal expansion

In isothermic process, which statement is wrong

In a thermodynamic process, pressure of a fixed mass of a gas is changed in such a manner that the gas molecules given out $$30$$ J of heat and $$10$$ J of work is done on the gas. If the initial internal energy of the gas was $$40$$ J. Then the final internal energy will be

A thermally container is divided into two parts by a screen. In one part the pressure and temperature are P and t for an idea gas filled. In the second part it is vaccum. If mow a small hole is created in the screen, then the temperature of the gas will