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11th Standard English Medium Physics Subject Heat and Thermodynamics Book Back 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 10

    Part I

    5 x 2 = 10
  1. An insulated container of gas has two chambers separated by an insulating partition. One of the chambers has volume V1 and contains ideal gas at pressure P1 and temperature T1. The other chamber has volume V2 and contains ideal gas at pressure P2 and temperature T2. If the partition is removed without doing any work on the gases, calculate the final equilibrium temperature of the container.

  2. Draw the TP diagram (P-x axis, T-y axis), VT(T-x axis, V-y axis) diagram for
    a. Isochoric process
    b. Isothermal process
    c. isobaric process

  3. Normal human body of the temperature is 98.6°F. During high fever if the temperature increases to 104°F, what is the change in peak wavelength that emitted by our body? (Assume human body is a black body)

  4. In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to 1/8 of its original volume. Calculate the temperature of the compressed air. (For air \(\gamma \) = 1.4)

  5. An ideal gas is taken in a cyclic process as shown in the figure. Calculate
    (a) work done by the gas.
    (b) work done on the gas
    (c) Net work done in the process

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