64. The r.m.s. speed of the molecules of a gas at a pressure
105 Pa and 0°C temperature is 0.5 km sec-1 If the pressure is kept constant but temperature is raised to 819°C, the velocity will become
(a) 1.5 kms–1 (b) 2 kms–1
(c) 5 kms–1 (d) 1 kms–1
Answer-d
(12)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)