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Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5 m2/s. Its kinematic viscosity at 70°C will be approximately
  • a)
    2.2 × 10-5 m2/s
  • b)
    1.6 × 10-5 m2/s
  • c)
    1.2 × 10-5 m2/s
  • d)
    3.2 × 10-5 m2/s
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5...
Dynamic viscosity of gases increase with temp μ∝T−−√μ∝T
Density of gases decreases with increase in temp ρ∝
T1 = 20 + 273 = 293 K   T2 = 70 + 273 = 343 K
ν1 = 1.6 × 10-5 m2/s       ν2 = ?
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Most Upvoted Answer
Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5...
The kinematic viscosity of air at 20 degrees Celsius is approximately 1.55 x 10^-5 m^2/s.
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Kinematic viscosity of air at 20°C is given to be 1.6 × 10-5m2/s. Its kinematic viscosity at 70°C will be approximatelya)2.2 × 10-5m2/sb)1.6 × 10-5m2/sc)1.2 × 10-5m2/sd)3.2 × 10-5m2/sCorrect answer is option 'A'. Can you explain this answer?
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