+91-8076753736[email protected]
logo
logo
-->

Mechanical Properties Of Fluids

Question
CBSEENPH11020324
Wired Faculty App

A Carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62 K, its efficiency increases to 1/3. Then T1 and T2 are, respectively

  • 372 K and 330 K

  • 330 K and 268 K

  • 310 K and 248 K

  • 372 K and 310 K

Solution

D.

372 K and 310 K

The efficiency  is given by,
straight eta subscript 1 space equals space 1 space minus straight T subscript 2 over straight T subscript 1 rightwards double arrow space 1 over 6 space equals space 1 space minus space straight T subscript 2 over straight T subscript 1 rightwards double arrow space straight T subscript 2 over straight T subscript 1 space equals space 5 over 6 straight eta subscript 2 space equals space 1 minus fraction numerator straight T subscript 2 minus 62 over denominator straight T subscript 1 end fraction space space.... space left parenthesis straight i right parenthesis 1 third space equals space 1 minus fraction numerator straight T subscript 2 minus 62 over denominator straight T subscript 1 end fraction space... space left parenthesis ii right parenthesis On space solving space Eqs space left parenthesis straight i right parenthesis space and space left parenthesis ii right parenthesis straight T subscript 1 space equals space 372 space straight K space and space straight T subscript 2 space equals space 310 space straight K

Some More Questions From Mechanical Properties of Fluids Chapter

What is the SI unit of molar specific heat?

Define heat capacity.

What are the units of heat capacity?

Define Dulong and Pettit’s law of specific heat.

Who explained the correct variation of specific heat with temperature in the lower range of temperature?

Do the gases have only one value of specific heat?

What is thermometry?

Define temperature.

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation