Thermodynamics (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SBSX (Class 12 & 1st Year B.Sc.) Physics): Questions 10  13 of 32
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Question number: 10
» Thermodynamics » Work in Thermodynamic Process and PV Diagrams
Appeared in Year: 2011
Question
A constant amount of an ideal gas undergoes the cyclic process ABCA in the PV diagram shown below
The path BC is an isothermal. The work done by the gas during one complete cycle, beginning and ending at A, is nearly –
Choices
Choice (4)  Response  

a.  600 kJ 

b.  300 kJ 

c.  600 kJ 

d.  300 kJ 

Question number: 11
» Thermodynamics » Work in Thermodynamic Process and PV Diagrams
Appeared in Year: 2012
Question
An ideal monatomic gas expands to twice its volume. If the process is isothermal, the magnitude of work done by the gas is W_{i}. If the process is adiabatic the magnitude of work done by the gas is W_{a}. Which of the following is true,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 12
» Thermodynamics » Thermal Equilibrium
Appeared in Year: 2013
Question
The equation of state of n moles of a nonideal gas can be approximated by the equation,
Where a and b are constants characteristic of the gas. Which of the following can represent the equation of quasistatic adiabatic for this gas (Assume that C_{V}, the molar heat capacity at constant volume, is independent of temperature)?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 13
» Thermodynamics » Measurement of Temperature
Appeared in Year: 2014
Question
Consider two thermometers T_{1} and T_{2} of equal length which can be used to measure temperature over the range θ_{1} to θ_{2}. T_{1} contains mercury as the thermometric liquid while T_{2} contains bromine. The volumes of the two liquids are the same at the temperature θ_{1}. The volumetric coefficients of expansion of mercury and bromine are 18 × 10^{–5} K^{–1} and 108 × 10^{–5} K^{–1}, respectively. The increase in length of each liquid is the same for the same increase in temperature. If the diameters of the capillary tubes of the two thermometers are d_{1} and d_{2} respectively, then the ratio d_{1}: d_{2} would be closest to –
Choices
Choice (4)  Response  

a.  0.4 

b.  2.5 

c.  6.0 

d.  0.6 
