Multiple choice

The pressure of a gas is P N/m2. The mean kinetic energy of one gram – mole at NTP ( in joule) will be

  1. 3.36 x 10-2 P

  2. 2.24 x 10-2 P

  3. 6.72 x 10-2 P

  4. 4.48 x 10-2 P

  5. 2.24 x 10-2 P
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

K.E. = (f/2)RT        = (3/2)RT        = (3/2)PV        VNTP = 22.4 x 10-3 J K.E. = (3/2)(P) VNTP         = 33.6 x 10-3 P        = 3.36 x 10-2 P

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