A Carnot engine with efficiency $50\,\%$ takes heat from a source at $600\,K$. In order to increase the efficiency to $70\,\%$, keeping the temperature of sink same, the new temperature of the source will be $.........\,K$
JEE MAIN 2023, Medium
Download our appand 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
- 1An ideal gas undergoes a circular cycle centred at $4 \,atm , 4 L$ as shown in the diagram. The maximum temperature attained in this process is close toView Solution
- 2A perfect gas goes from state $A$ to another state $B$ by absorbing $8 \times {10^5}J$ of heat and doing $6.5 \times {10^5}J$ of external work. It is now transferred between the same two states in another process in which it absorbs ${10^5}J$ of heat. Then in the second processView Solution
- 3An ideal gas is made to undergo a cycle depicted by the $p-V$ diagram given below. The curved line from $A$ to $B$ is an adiabat.Then,View Solution
- 4View Solution“Heat cannot by itself flow from a body at lower temperature to a body at higher temperature” is a statement or consequence of
- 5An ideal gas is taken through a quasi-static process described by $P = \alpha\, V^2$, with $\alpha = 5\,atm/m^6$. The gas is expanded to twice its original volume of $1\,m^3$. How much work is done by the expanding gas in this processView Solution
- 6One mole of a monatomic ideal gas is taken along two cyclic processes $E \rightarrow F \rightarrow G \rightarrow E$ and $E \rightarrow F \rightarrow H \rightarrow$ E as shown in the $PV$ diagram. The processes involved are purely isochoric, isobaric, isothermal or adiabatic. $Image$View Solution
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.
List $I$ List $I$ $P.$ $\quad G \rightarrow E$ $1.$ $\quad 160 P_0 V_0 \ln 2$ $Q.$ $\quad G \rightarrow H$ $2.$ $\quad 36 P _0 V _0$ $R.$ $\quad F \rightarrow H$ $3.$ $\quad 24 P _0 V _0$ $S.$ $\quad F \rightarrow G$ $4.$ $\quad 31 P_0 V_0$ Codes: $ \quad \quad P \quad Q \quad R \quad S $
- 7View SolutionThe efficiency of a Carnot engine depends upon
- 8The temperature of reservoir of Carnot's engine operating with an efficiency of $70\%$ is $1000K.$ The temperature of its sink is ...... $K$View Solution
- 9Two Carnot engines $A$ and $B$ are operated in succession. The first one, $A$ receives heat from a source at $T_1 = 800\, K$ and rejects to sink at $T_2K$. The second engine $B$ receives heat rejected by the first engine and rejects to another sink at $T_3 = 300\, K$. If the work outputs of two engines are equal, then the value of $T_2$ is ...... $K$View Solution
- 10A system is provided with $200 \,cal$ of heat and the work done by the system on the surrounding is $40 \,J$. Then its internal energyView Solution