Physics-
General
Easy

Question

The temperature-entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is

  1. 1 divided by 3    
  2. 2 divided by 3    
  3. 1 divided by 2    
  4. 1 divided by 4    

The correct answer is: 1 divided by 3

Related Questions to study

General
Physics-

Carnot cycle (reversible) of a gas represented by a Pressure-Volume curve is shown in the diagram
Consider the following statements
I. Area ABCD = Work done on the gas
II. Area ABCD = Net heat absorbed
III. Change in the internal energy in cycle = 0
Which of these are correct

Carnot cycle (reversible) of a gas represented by a Pressure-Volume curve is shown in the diagram
Consider the following statements
I. Area ABCD = Work done on the gas
II. Area ABCD = Net heat absorbed
III. Change in the internal energy in cycle = 0
Which of these are correct

Physics-General
General
Physics-

A cyclic process ABCD is shown in the figure P-V diagram. Which of the following curves represent the same process

A cyclic process ABCD is shown in the figure P-V diagram. Which of the following curves represent the same process

Physics-General
General
Physics-

A cyclic process for 1 mole of an ideal gas is shown in figure in the V-T, diagram. The work done in AB, BC and CA respectively

A cyclic process for 1 mole of an ideal gas is shown in figure in the V-T, diagram. The work done in AB, BC and CA respectively

Physics-General
parallel
General
Physics-

In the following indicator diagram, the net amount of work done will be

In the following indicator diagram, the net amount of work done will be

Physics-General
General
Physics-

An ideal gas is taken through the cycle A rightwards arrow B rightwards arrow C rightwards arrow A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C rightwards arrow A is

An ideal gas is taken through the cycle A rightwards arrow B rightwards arrow C rightwards arrow A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C rightwards arrow A is

Physics-General
General
Physics-

The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done on the system in going from A rightwards arrow B rightwards arrow C is 50 J and 20 cal heat is given to the system. The change in internal energy between A and C is

The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done on the system in going from A rightwards arrow B rightwards arrow C is 50 J and 20 cal heat is given to the system. The change in internal energy between A and C is

Physics-General
parallel
General
Physics-

In pressure-volume diagram given below, the isochoric, isothermal, and isobaric parts respectively, are

In pressure-volume diagram given below, the isochoric, isothermal, and isobaric parts respectively, are

Physics-General
General
Physics-

Four curves A, B, C and D are drawn in the adjoining figure for a given amount of gas. The curves which represent adiabatic and isothermal changes are

Four curves A, B, C and D are drawn in the adjoining figure for a given amount of gas. The curves which represent adiabatic and isothermal changes are

Physics-General
General
Physics-

P-V plots for two gases during adiabatic process are shown in the figure. Plots 1 and 2 should correspond respectively to

P-V plots for two gases during adiabatic process are shown in the figure. Plots 1 and 2 should correspond respectively to

Physics-General
parallel
General
Physics-

A thermodynamic process is shown in the figure. The pressures and volumes corresponding to some points in the figure are : P subscript A end subscript equals 3 cross times 1 0 to the power of 4 end exponent P a comma   P subscript B end subscript equals 8 cross times 1 0 to the power of 4 end exponent P a and V subscript A end subscript equals 2 cross times 1 0 to the power of negative 3 end exponent m to the power of 3 end exponent comma   V subscript D end subscript equals 5 cross times 1 0 to the power of negative 3 end exponent m to the power of 3 end exponent
In process AB, 600 J of heat is added to the system and in process BC, 200 J of heat is added to the system. The change in internal energy of the system in process AC would be

A thermodynamic process is shown in the figure. The pressures and volumes corresponding to some points in the figure are : P subscript A end subscript equals 3 cross times 1 0 to the power of 4 end exponent P a comma   P subscript B end subscript equals 8 cross times 1 0 to the power of 4 end exponent P a and V subscript A end subscript equals 2 cross times 1 0 to the power of negative 3 end exponent m to the power of 3 end exponent comma   V subscript D end subscript equals 5 cross times 1 0 to the power of negative 3 end exponent m to the power of 3 end exponent
In process AB, 600 J of heat is added to the system and in process BC, 200 J of heat is added to the system. The change in internal energy of the system in process AC would be

Physics-General
General
Physics-

An ideal gas of mass m in a state A goes to another state B via three different processes as shown in figure. If Q subscript 1 end subscript comma Q subscript 2 end subscript and Q subscript 3 end subscript denote the heat absorbed by the gas along the three paths, then

An ideal gas of mass m in a state A goes to another state B via three different processes as shown in figure. If Q subscript 1 end subscript comma Q subscript 2 end subscript and Q subscript 3 end subscript denote the heat absorbed by the gas along the three paths, then

Physics-General
General
Physics-

The P-V diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum

The P-V diagram shows seven curved paths (connected by vertical paths) that can be followed by a gas. Which two of them should be parts of a closed cycle if the net work done by the gas is to be at its maximum

Physics-General
parallel
General
Physics-

V diagram. The work done during a cycle is

V diagram. The work done during a cycle is

Physics-General
General
Physics-

A system goes from A to B via two processes I and II as shown in figure. If capital delta U subscript 1 end subscript and capital delta U subscript 2 end subscript are the changes in internal energies in the processes I and II respectively, then

A system goes from A to B via two processes I and II as shown in figure. If capital delta U subscript 1 end subscript and capital delta U subscript 2 end subscript are the changes in internal energies in the processes I and II respectively, then

Physics-General
General
Physics-

Following figure shows on adiabatic cylindrical container of volume V subscript 0 end subscript divided by an adiabatic smooth piston (area of cross-section = A) in two equal parts. An ideal gas left parenthesis C subscript P end subscript divided by C subscript V end subscript equals gamma right parenthesis is at pressure P1 and temperature T1 in left part and gas at pressure P2 and temperature T2 in right part. The piston is slowly displaced and released at a position where it can stay in equilibrium. The final pressure of the two parts will be (Suppose x = displacement of the piston)

Following figure shows on adiabatic cylindrical container of volume V subscript 0 end subscript divided by an adiabatic smooth piston (area of cross-section = A) in two equal parts. An ideal gas left parenthesis C subscript P end subscript divided by C subscript V end subscript equals gamma right parenthesis is at pressure P1 and temperature T1 in left part and gas at pressure P2 and temperature T2 in right part. The piston is slowly displaced and released at a position where it can stay in equilibrium. The final pressure of the two parts will be (Suppose x = displacement of the piston)

Physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.