Wavelength = 434nm = 434 x 10⁻⁹m
planck's constant = <span>h= 6.626 x 10 ⁻³⁴ J
E =?
by using the formula;
E = hc /</span>λ
value for c is 3 x 10⁸ m/s
E = (6.626 x 10 ⁻³⁴ J)(3 x 10⁸ m/s) / 434 x 10⁻⁹m
E = 1.9878 x 10⁻²⁵ / 434 x 10⁻⁹m
E = 4.58 x 10⁻¹⁹ joules
Answer:
monomers
Explanation:
Thousands of molecules are called monomers
Answer:
P2 = 0.935 atm
Explanation:
initial conditions:
∴ V1 = 3.41 L
∴ T1 = - 91.5 °C + 273 = 181.5 K
∴ P1 = 3990 torr * ( atm / 760 torr ) = 5.25 atm
∴ R = 0.082 atm.L / K.mol
⇒ n = P1V1 / RT1 = ((5.25 atm)*(3.41 L)) / ((0.082 atm.L/K.mol)*(181.5 K))
⇒ n = 1.107 mol
final conditions:
∴ V2 = 3.3 L
∴ T2 = - 239 °C = 34 K
∴ n = 1.107 mol
⇒ P2 = nRT2 / V2
⇒ P2 = ((1.107 mol)*(0.082 atm.L/K.mol)*(34 K)) / 3.3 L
⇒ P2 = 0.935 atm
The correct answer would be A. Dark coloured soil.
B because you can feel the current
