A $P-T$ graph is shown for a cyclic process. Select correct statement regarding this
  • ADuring process $C D$, work done by gas is negative
  • BDuring process $A B$, work done by the gas is positive
  • CDuring process $B C$ internal energy of system increases
  • DDuring process $B C$ internal energy of the system decreases
Medium
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
    When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas, is
    View Solution
  • 2
    A Carnot engine whose sink is at $300\, K$ has an efficiency of  $40\%.$ By how much should the temperature of source be increased so as to increase its efficiency by $50\%$ of original efficiency  ..... $K$
    View Solution
  • 3
    By opening the door of a refrigerator placed inside a room you
    View Solution
  • 4
    An ideal gas goes from state $A$ to state $B$ via three different processes as indicated in the $P-V$ diagram. If $Q_1, Q_2, Q_3$ indicate the heat absorbed by the gas along the three processes and $\Delta U_1, \Delta U_2, \Delta U_3$ 
    indicate the change in internal energy along the three processes respectively, then 
    View Solution
  • 5
    In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30$ joules of heat and $10$ joules of work was done on the gas. If the initial internal energy of the gas was $30$ joules, then the final internal energy will be ........ $J$
    View Solution
  • 6
    In a reversible isochoric change
    View Solution
  • 7
    If a gas is heated at constant pressure, its isothermal compressibility
    View Solution
  • 8
    In an Isobaric process, the work done by a di$-$atomic gas is $10\, J ,$ the heat given to the gas will be (in $J$)
    View Solution
  • 9
    A Carnot engine, whose efficiency is $40\%$, takes in heat from a source maintained at a temperature of $500\ K$. It is desired to have an engine of efficiency $60\%$. Then, the intake temperature for the same exhaust (sink) temperature must be ....... $K$
    View Solution
  • 10
    One mole of an ideal monoatomic gas undergoes the following four reversible processes:

    Step $1$ It is first compressed adiabatically from volume $V_{1}$ to $1 \;m ^{3}$.

    Step $2$ Then expanded isothermally to volume $10 \;m ^{3}$.

    Step $3$ Then expanded adiabatically to volume $V _{3}$.

    Step $4$ Then compressed isothermally to volume $V_{1}$. If the efficiency of the above cycle is $3 / 4$, then $V_{1}$ is ............ $m^3$

    View Solution