A gas expands under constant pressure $P$ from volume ${V_1}$ to ${V_2}$. The work done by the gas is
  • A$P({V_2} - {V_1})$
  • B$P({V_1} - {V_2})$
  • C$P(V_1^\gamma - V_2^\gamma )$
  • D$P\frac{{{V_1}{V_2}}}{{{V_2} - {V_1}}}$
Easy
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    The maximum possible efficiency of a heat engine is ...........
    View Solution
  • 2
    A piece of hot copper at $100^{\circ} C$ is plunged into a pond at $30^{\circ} C$. The copper cools down to $30^{\circ} C$, while the pond being huge stays at its initial temperature. Then,
    View Solution
  • 3
    During an adiabatic compression, $830\, J$ of work is done on $2\, moles$ of a diatomic ideal gas to reduce its volume by $50\%$. The change in its temperahture is nearly..... $K$ $(R\, = 8.3\, J\,K^{-1}\, mol^{-1} )$
    View Solution
  • 4
    In the $P-V$ diagram shown, the gas does $5\, J$ of work in isothermal process $ab$ and $4\,J$ in adiabatic process $bc$.   .... $J$ will be the change in internal energy of the gas in straight path $c$ to $a$ ?
    View Solution
  • 5
    When $1\, kg$ of ice at $0^o C$ melts to water at $0^o C,$ the resulting change in its entropy, taking latent heat of ice to be $80\, cal/gm,$ is ...... $cal/K$
    View Solution
  • 6
    On a $TP$ diagram, two moles of ideal gas perform process $AB$ and $CD$. If the work done by the gas in the process $AB$ is two times the work done in the process $CD$ then what is the value of $T_1/T_2$?
    View Solution
  • 7
    A Carnot engine works between $27^{\circ} C$ and $127^{\circ} C$. Heat supplied by the source is $500\, J$. then heat ejected to the sink is (in $J$)
    View Solution
  • 8
    By opening the door of a refrigerator placed inside a room you
    View Solution
  • 9
    Choose the incorrect statement from the following

    $S1:$ The efficiency of a heat engine can be $1,$ but the coefficient of performance of a refrigerator can never be infinity.

    $S2:$ The first law of  thermodynamics is basically the principle of conservation of energy.

    $S3:$ The  second law of thermodynamics does not allow several phenomena consistent  with the first law. 

    $S4:$ A process,whose only result is to transfer heat from a colder to a hotter object, is  impossible.

    View Solution
  • 10
    Heat is given to an ideal gas in an isothermal process.

    $A.$ Internal energy of the gas will decrease.

    $B.$ Internal energy of the gas will increase.

    $C.$ Internal energy of the gas will not change.

    $D.$ The gas will do positive work.

    $E.$ The gas will do negative work.

    Choose the correct answer from the options given below :

    View Solution