Describe Camot's cycle. - Vidyadip

Question

Describe Camot's cycle.

✓

Answer

Carnot cycle is defined as an ideal reversible closed thermodynamic cycle. Four successive operations are involved: isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression.

In (a), the process is reversible isothermal gas expansion. In this process, the amount of heat absorbed by the ideal gas is $q_{i n}$ from the heat source at a temperature of $T _{ h }$ The gas expands and does work on the surroundings.
In (b), the process is reversible adiabatic gas expansion. Here, the system is thermally insulated, and the gas continues to expand and work is done on the surroundings. Now the temperature is lower, $T _1$
In (c), the process is a reversible isothermal gas compression process. Here, the heat loss $q _{\text {out }}$ occurs when the surroundings do the work at temperature $T _1$.
In (d), the process is reversible adiabatic gas compression. Again the system is thermally insulated. The temperature again rises back to $T _{ h }$ as the surrounding continue to do their work on the gas.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Model Paper 10→Model Paper 10 — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

A particle starts from the origin, goes along the X-axis to the point (20m, 0) and then returns along the same line to the point (-20m, 0). Find the distance and displacement of the particle during the trip.

Which of the following potential energy curves in cannot possibly describe the elastic collision of two billiard balls? Here r is the distance between centres of the balls.

Earth also moves in circular orbit around sun once every year with on orbital radius of 1.5 × 10¹¹m. What is the acceleration of earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8m/ s²?

$\Big(\text{Hint: acceleration}\frac{\text{V}^2}{\text{R}}=\frac{4\pi^2\text{R}}{\text{T}^2}\Big)$

Two blocks of equal mass m are tied to each other through a light string. One of the blocks is pulled along the line joining them with a constant force F. Find the tension in the string joining the blocks.

A body is moved along a closed loop. Is the work done in moving the body necessarily zero? If not, state the condition under which work done over a closed path is always zero.

Using the expression for pressure exerted by a gas, deduce Avogadro's law and Graham's law of diffusion.

Suppose a monochromatic X-ray beam of wavelength 100pm is sent through a Young's double slit and the interference pattern is observed on a photographic plate placed 40cm away from the slit. What should be the separation between the slits so that the successive maxima on the screen are separated by a distance of 0.1mm?

Calculate the speed of sound in oxygen from the following data. The mass of 22.4 litre of oxygen at STP (T = 273K and p = 1.0 x 10⁵N/m²) is 32g, the molar heat capacity of oxygen at constant volume is C_v = 2.5R and that at constant pressure is C_p = 3.5R.

The elastic limit of a steel cable is 3.0 × 10⁸ N/ m² and the cross-section area is 4cm and the maximum upward acceleration that can be given to a 900kg elevator supported by the cable if the stress is not to exceed one-third of the elastic limit.

In a refrigerator, heat from inside of a refrigerator at 270 K is transferred to a room at 300 K .
i. What is its coefficient of performance?
ii. How much heat will be delivered to the room for each joule of electric energy consumed? Assume the refrigerator to be an ideal one.