मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure. - Physics

Advertisements
Advertisements

प्रश्न

Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure. 

आलेख
Advertisements

उत्तर

  1. p-V diagram showing positive work with varying pressure:

  2. p-V diagram showing negative work with varying pressure:

  3. p-V diagram showing positive work at constant pressure:

shaalaa.com
Thermodynamic Process
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Thermodynamics - Short Answer II

संबंधित प्रश्‍न

Answer in brief.

Why should a Carnot cycle have two isothermal two adiabatic processes?


For work done to be reversible, the process should be ______ 


What is a thermodynamic process?


Draw a p-V diagram showing positive work with varying pressure. 


State the assumptions made for thermodynamic processes.


When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is ____________.


When you exercise in the morning, by considering your body as a thermodynamic system, which of the following is true?


Apply first law for an isobaric process.


Draw the PV diagram for the isobaric process.


Can the given heat energy be completely converted to work in a cyclic process? If not, when can the heat can completely converted to work?


Explain the isobaric process and derive the work done in this process.


Explain in detail the isochoric process.


Consider the following cyclic process consist of isotherm, isochoric and isobar which is given in the figure.

Draw the same cyclic process qualitatively in the V-T diagram where T is taken along the x-direction and V is taken along the y-direction. Analyze the nature of heat exchange in each process.


For a given ideal gas 6 × 105 J heat energy is supplied and the volume of gas is increased from 4 m3 to 6 m3 at atmospheric pressure. Calculate

  1. the work done by the gas
  2. change in internal energy of the gas
  3. graph this process in PV and TV diagram

A monoatomic gas of pressure p having volume V expands isothermally to a volume 2V and then adiabatically to a volume 16V. The final pressure of the gas is ____________.

`("ratio of specific heats" = 5/3)`


An ideal gas is expanded isothermally from volume V1 to volume V2 and then compressed adiabatically to original volume V1. If the initial pressure is P1, the final pressure is P3 and net work done is W, then ____________.


An ideal gas is made to go from a state A to stale B in the given two different ways (see figure) (i) an isobaric and then an isochoric process and (ii) an isochoric and then an isobaric process. The work done by gas in the two processes are W1 and W2 respectively. Then,


In which of the following processes, beat is neither absorbed nor released by a system?


An ideal gas A and a real gas B have their volumes increased from V to 2V under isothermal conditions. The increase in internal energy ____________.


An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas?


We consider a thermodynamic system. If `Delta"U"` represents the increase in its internal energy and W the work done by the system, which of the following statements is true?


Which of the following processes is reversible?  


Consider P-V diagram for an ideal gas shown in figure.


Out of the following diagrams (figure), which represents the T-P diagram?


(i)

(ii)

(iii)

(iv)

In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100°C to 300°C will be ______ nR, where n denotes number of moles of a gas.


Explain the thermodynamic process.


Explain how can a gas be expanded at constant temperature.


In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×