A Carnot engine takes $3 \times {10^6}\,cal$. of heat from a reservoir at $627°C$, and gives it to a sink at $27°C.$ The work done by the engine is
  • A$4.2 \times {10^6}J$
  • B$8.4 \times {10^6}J$
  • C$16.8 \times {10^6}J$
  • D
    Zero
AIEEE 2003, 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
    A Camot cycle consists of
    View Solution
  • 2
    A thermodynamic system is taken from an original state $D$ to an intermediate state $E$ by the linear process shown in the figure. Its volume is then reduced to the original volume from $E$ to $F$ by an isobaric process. The total work done by the gas from $D$ to $E$ to $F$ will be $......J$
    View Solution
  • 3
    A gas is compressed from a volume of $2\,m^3$ to a volume of $1\, m^3$ at a constant pressure of $100\, N/m^2$. Then it is heated at constant volume by supplying $150\, J$ of energy. As a result, the internal energy of the gas
    View Solution
  • 4
    An ideal gas at atmospheric pressure is adiabatically compressed so that its density becomes $32$ times of its initial value. If the final pressure of gas is $128$ atmosphers, the value of $\gamma$ the gas is
    View Solution
  • 5
    One mole of a perfect gas in a cylinder fitted with a piston has a pressure $P,$ volume $V$ and temperature $T.$ If the temperature is increased by $1 \,K$ keeping pressure constant, the increase in volume is
    View Solution
  • 6
    Figure shows a polytropic process for an ideal gas. The work done by the gas will be in process $AB$ is
    View Solution
  • 7
    The heat absorbed by a system in going through the given cyclic process is:
    View Solution
  • 8
    In a given process for an ideal gas, $dW = 0$ and $dQ < 0.$ Then for the gas
    View Solution
  • 9
    Two Carnot engines $A$ and $B$ are operated in succession. The first one, $A$ receives heat from a source at ${T_1} = 800K$ and rejects to sink at ${T_2}K.$. The second engine $B$ receives heat rejected by the first engine and rejects to another sink at ${T_3} = 300K.$ If the work outputs of two engines are equal, then the value of ${T_2}$ is .... $K$
    View Solution
  • 10
    If $Q , E$ and $W$ denote respectively the heat added, change in internal energy and the work done by a closed cycle process, then
    View Solution