An ideal gas is enclosed in a thermally insulated container. Container is covered by an insulating piston which is connected with spring. Small displacement is given to piston as shown in figure. Which of the following statements is correct? Neglect friction everywhere.

A liquid is stirred in thermally insulated container , for about 2 hrs. Which of the following si correct ?

A liquid is stirred in thermally insulated container , for about 2 hrs. Which of the following si correct ?

One mole of an ideal gas is contained in a perfectly insulating cylinder. Initially adiabatic piston of unit are and unit mass is in equilibrium. Now a block of same mass is kept gently on piston as shown in figure. (Take lambda=1.5,g=10m//s^(2) and neglect friction and assume change in temperature in whole gas is simultaneous) Depth upto which (piston+block) will move before coming to rest again is :

One mole of an ideal gas is contained in a perfectly insulating cylinder. Initially adiabatic piston of unit are and unit mass is in equilibrium. Now a block of same mass is kept gently on piston as shown in figure. (Take lambda=1.5,g=10m//s^(2) and neglect friction and assume change in temperature in whole gas is simultaneous) Maximum pressure of gas during its motion:

One mole of an ideal gas is contained in a perfectly insulating cylinder. Initially adiabatic piston of unit are and unit mass is in equilibrium. Now a block of same mass is kept gently on piston as shown in figure. (Take lambda=1.5,g=10m//s^(2) and neglect friction and assume change in temperature in whole gas is simultaneous) Maximum pressure of gas during its motion:

A thermally insulated rigid container contains an ideal gas heated by a filament of resistance 100 Omega through a current of 1 A for 5 min then change in internal energy

A thermally insulated rigid container contain an ideal gas heated by a filament of resistance 30Ω through a current of 2A for 3 min, then change in internal energy is