Question

9. What volume of oxygen at STP is required to affect the
combustion of 11 litres of ethylene [CH,) at 273°C and
380 mm of Hg pressure?
CH4 + 302 → 2CO2 + 2H2O
​

Answer 1

The uncertainity of a moving bullet of mass 10g is 10^-5 m. Calculate the uncertainity in its velocity?

According to uncertainty principle

Δx.Δmv = ℎ / 4π

Δv = ℎ 4πmΔ

x=6.626 × 10−34 / 4×3

=> ×14×10−2×10−5

=> 5.27×10−28 m/s ...