Question

at what temperature will speed of sound in air become twice the speed of sound at 27 degree Celsius​

Answer 1

Speed of sound at any temperature is

V = 331.5 m/s + 0.61 × T

Speed of sound at 27 C is

V = 331.5 m/s + 0.61 × 27

V = 331.5 m/s + 16.47m/s = 347.97m/s

Its double value is 695.94m/s

V = 331.5 m/s + 0.61 × T

T = ( V — 331.5)/.61 m/s

T = ( 695.94— 331.5)/.61 m/s

T = 597.443 Deg Celsius

Hope this helps.