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JSSC JE (ME) :QUIZ-26 || Thermodynamic Relations & real Gas Mixtures

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Question 1

For an ideal gas, the slope of the constant volume line is _______ than that of constant pressure line on the T-s diagram.

Question 2

Which of the following parameters remains constant during ideal throttling process

Question 3

Using the Clausius–Clapeyron equation find the enthalpy of vaporization(in kJ/kg). The following data is given: At 200°C, v_g=0.1275 m³/kg and V_f= 0.001157 m³/kg and change of pressure with respect to temperature $Description: Description: 02_Thermodynamics_BLok_files\image035.png$ .

Question 4

Adiabatic compressibility (k_s) is given as

Question 5

The value of

is equal to (where h_fg is latent heat of vaporization, T_sat is saturation temperature, v_g is dry saturated specific volume of vapour and v_f is the specific volume of saturated liquid)

Question 6

Which one of the following relationships defines the Helmholtz function F?

Question 7

Choose the incorrect relation :-

Question 8

Which of the following is not a Maxwell relation of thermodynamic potentials (temperature T,entropy S,pressure P,volume V)_________.

Question 9

Which one of the following is the characteristic equation of a real gas?

Question 10

Consider the following statements in respect of the Clausius-Clapeyron equation:
1) It points to one possible way of measuring thermodynamic temperature.
2) It permits latent heat of vaporization to be estimated from measurements of specific volumes of saturated liquid, saturated vapour and the saturation temperature at two nearby pressures.
3) It does not apply to changes from solid to the liquid phase and from solid to the vapour phase.
Which of these statements are correct?

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AE & JE Exams Mechanical Engineering

Jun 21AE & JE Exams