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MDCAT
Physics
2018

Physics · Heat and Thermodynamics

Work through this past-paper style MCQ, then read the full explanation. Practice more physics questions on mMCQ with adaptive practice and topic analytics.

Question

Which process is shown in the graph between pressure and volume given below?

MDCAT Physics question — Heat and Thermodynamics
Options
  • A

    Adiabatic

  • B

    Isobaric

  • C

    Isochoric

  • D

    Isothermal

Explanation

The graph above shows that pressure is increasing while the volume remains constant.

The processes in which the volume is constant are said to be isochoric in nature.

Adiabatic :In adiabatic process the change in heat is zero (0) means no heat is given in or out of system so the work is done by internal energy and the graph of adiabatic process between pressure and volume is exponential 

curve.

Isobaric : In isobaric process the pressure remain same and volume increase with rise in temperature and the graph of isobaric between pressure and volume is straight line parellel to volume axis .

Isochoric :In isochoric process the volume remain same and the pressure increase with rise in temperature and the graph of isochoric between pressure and volume is straight line parellel to pressure axis 

Isothermal : In isothermal process the tenperature remain same and the volume increases or decrease with rise or fall in pressure and the graph of isothermall between pressure and volume is hyperbola

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Tagged under Physics · Heat and Thermodynamics · 2018