30. r.m.s. velocity of nitrogen molecules at NTP is
(a) 492 m /s (b) 517 m/s
(c) 546 m/s (d) 33 m/s
Answer-b
(38)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)