This question has statement -1 and statement -2. Of the four choices given after the Statements, choose the one that best describes the two Statements. [JEE ONLINE 23-04-2013] |
Statement-1: The internal energy of a perfect gas is entirely kinetic and depends only on absolute temperature of the gas and not on its pressure or volume. |
Statement 1: A perfect gas is heated keeping pressure constant pressure is lower than that at constant volume. |
A) Statement-1 is true, Statement-2 is true, and Statement 2 is the count explanation of Statement 1.
B) Statement -1 is true, Statement-2 is false.
C) Statement 1 is true, Statement 2 is true but Statement 2 is not the correct explanation of Statement 1.
D) Statement -1 is false, Statement -2 is true.
Correct Answer: C
Solution :
[c] Internal energy of a system is the energy possessed by the system due to molecular motion and molecular configuration. |
Internal energy |
For an ideal gas there is no molecular attraction |
Internal energy(i.e., internal kinetic energy) and |
At constant pressure |
At constant volume |
As |
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