Home
Class 12
MATHS
A thermodynamic system is taken from an ...

A thermodynamic system is taken from an initial state `X` along the path `XYZX` as shown in the PV-diagram.

For the proces `YtoZ,Q` is greater than zero and

A

`Wlt0` & `DeltaU=0`

B

`W=0` & `DeltaUlt0`

C

`W=0` & `DeltaUgt0`

D

`Wgt0` & `DeltaU=0`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Fig. (12.13) Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F

A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in figure. Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F.

A thermodynamic system is taken from an initial state I with internal energy U_i=-100J to the final state f along two different paths iaf and ibf, as schematically shown in the figure. The work done by the system along the pat af, ib and bf are W_(af)=200J, W_(ib)=50J and W_(bf)=100J respectively. The heat supplied to the system along the path iaf, ib and bf are Q_(iaf), Q_(ib),Q_(bf) respectively. If the internal energy of the system in the state b is U_b=200J and Q_(iaf)=500J , The ratio (Q_(bf))/(Q_(ib)) is

When a system is taken from state i to state f along the path iaf, it is found that Q=50 cal and W=20 cal . Along the path ibf Q=36cal . W along the path ibf is

A gas takes part in two processes in which it is heated from the same initial state 1 to the same final temperature. The processes are shown on the p-V diagram by the straight lines 1-3 and 1-2. 2 and 3 are the points on the same isothermal curve. Q_1 and Q_2 are the heat transfer along the two processes. Then,

An ideal gas undergoes four different processes from the same initial state as shown in figure of P-V diagram. Four processes are adiabatic, isothermal, isobaric and isochoric. Out of 1,2,3 and 4 which one is adiabatic ?

A particle of mass m and charge +q approaches from a very large distance towards a uniformly charged ring ofradius Rand charge, mass same as that of particle, with initial velocity v_(0) along the axis of the ring as shown in the figure-1.420. What is the closest distance of approach between the ring and the particle? Assume the space to be gravity free and frictionless :

One mole of a monatomic ideal gas is taken along two cyclic processes E to F to G to E and E to F to H to E as shown in the PV diagram. The processes involved are purely isochoric , isobaric , isothermal or adiabatic . Match the paths in List I with the magnitudes of the work done in List II and select the correct answer using the codes given below the lists.

When a system is taken from state a to state b, in figure along the path a to c to b , 60J of heat flow into the system, and 30 J of work is done : (i) How much heat flows into the system along the path a to d to b if the work is 10J . (ii) When the system is returned from b to along the curved path, the work done by the system is -20J . Does the system absorb or liberate heat, and how much ? (iii) If , U_(a) = 0 and U_(d)= 22J , find the heat absorbed in the process a to d and d to b .

Two masses A and B of mass M and 2M respectively are connected by a compressed ideal spring. The system in placed on a horizontal frictionless table and given a velocity uhat(k) in the z-direction as shown in the figure. The spring is then released. In the subsequent motion the line from B to A alwyas points along the hat(i) unit vector. All some instant of time mass B has a x-component of velocity as v_(x)hat(i) . The velocity vec(v)_(A) of mass A at that instant is :-

ALLEN -TEST PAPERS-PHYSICS
  1. A certain quantity of an ideal gas initially at temperature T(0).press...

    Text Solution

    |

  2. A thermodynamic system is taken from an initial state X along the path...

    Text Solution

    |

  3. A thermodynamic system is taken from an initial state X along the path...

    Text Solution

    |

  4. The below P-V diagram represents the thermodynamic cycle for one mole ...

    Text Solution

    |

  5. A container with insulating walls is divided into two equal parts by a...

    Text Solution

    |

  6. If C(P) and C(V) denote the specific heats of nitrogen per unit gram a...

    Text Solution

    |

  7. A new monatomic ideal gas is discovered and named Wellsium. A pure 4-m...

    Text Solution

    |

  8. A sample of gas is caused to go through the cycle shown in the PV diag...

    Text Solution

    |

  9. 0.02 moles of an ideal gas undergo a cycle consisting of an isochoric ...

    Text Solution

    |

  10. A part of circuit is shown in figure. Choose the CORRECT option(s):

    Text Solution

    |

  11. A binary star system consists of two stars having masses M and 2M. Th...

    Text Solution

    |

  12. Three electric lamps designed for a voltage of 110V each are rated at ...

    Text Solution

    |

  13. Three metallic plates out of which middle is given charge Q as shown i...

    Text Solution

    |

  14. A neutral conductor of radius R has a spherical cavity of radius R/4 a...

    Text Solution

    |

  15. An ellipsoidal gaussion surface with semi major axis a and minor axis ...

    Text Solution

    |

  16. For given circuit, select correct alternative(s)

    Text Solution

    |

  17. If Q is the charge on the plates of a capacitor of capacitance C,V the...

    Text Solution

    |

  18. Case I- represents two concentric spheres of inner radius a and outer ...

    Text Solution

    |

  19. Case I- represents two concentric spheres of inner radius a and outer ...

    Text Solution

    |

  20. Five identical capacitors (initially uncharged) are connected in circu...

    Text Solution

    |