Solved papers for JEE Main & Advanced JEE Main Online Paper (Held on 9 April 2013)

done JEE Main Online Paper (Held on 9 April 2013) Total Questions - 2

• question_answer1)                 Figure shows the variation in temperature \[(\Delta T)\]with the amount of heat supplied \[(Q)\] in an isobaric process corresponding to a monatomic (M), diatomic (D) and a polyatomic (P) gas. The initial state of all the gases are the same and the scales for the two axes coincide, ignoring vibration degrees of freedom, the lines a, b and c respectively correspond to :                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  P, M and D                                         
  done clear
  B)
                  M, D and P                                         
  done clear
  C)
                  P, D and M                         
  done clear
  D)
                         D, M and P                
  done clear
  View Answer play_arrow

• question_answer2)                                 There are two identical chambers, completely thermally insulated from surroundings. Both chambers have a partition wall dividing the chambers in two compartments. Compartment 1 is filled with an ideal gas and compartment 3 id filled with a real gas. Compartments 2 and 4 are vacuum. A small hole (orifice) is made in the partition walls and the gases are allowed to expand in vacuum.                 Statement-1: No change in the temperature of the gas takes place when ideal as expands in vacuum. However, the temperature of real gas goes down (cooling) when it expands it expands in vacuum.                 Statement-2: The internal energy of an ideal gas is only kinetic. The internal energy of a real gas is kinetic as well as potential.                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  Statement 1 is false and Statement 2is true                 
  done clear
  B)
                  Statement 1 and Statement 2 bath are true. Statement 2 is the correct explanation of Statement 1.                
  done clear
  C)
                  Statement 1 is true and Statement 2 if false.                
  done clear
  D)
                  Statement 1 and Statement 2 both are true. Statement 2 is not the correct explanation of Statement 1.
  done clear
  View Answer play_arrow