Answers

2015-04-01T12:05:13+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Velocity of sound is given as

v=20.05 \sqrt{T}\ m/s\\ where\ T=absolute\ temperature\ of\ air.

(Absolute temperature is temperature in Kelvin.)
When temperature is doubled, let say from T to 2T, velocity will be

v=20.05 \sqrt{T} \\v'=20.05 \sqrt{2T}= \sqrt{2} \times 20.05 \sqrt{T}\\ \\ \frac{v'}{v}= \frac{ \sqrt{2} \times 20.05 \sqrt{T}}{20.05 \sqrt{T}} =\boxed{ \sqrt{2} }
1 5 1
2015-04-02T00:20:29+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Velocity of sound  v is proportional to  the absolute temperature T of the ideal gas through which it travels.

       v  α  √T
   v2 / v1 = √(T2 / T1) = √2
==========================
More formulas:
    Actually through an ideal gas, velocity of sound (longitudinal wave):
       v = 20.05 √T  m/sec
       v = √ [ γ R T / M]
             γ = ratio of specific heats of the gas
             R = universal gas constant
             M = molar mass of the gas

2 4 2