The longest wavelength doublet absorption transition is observed at 589 nm and 589.6 nm. Calculate t

Q: What is the correct answer for CBSE11?

The correct answer is A. First, calculate the frequencies: ν₁ = c/λ₁ = (3.00 x 10⁸ m s⁻¹) / (589 x 10⁻⁹ m) = 5.09337 x 10¹⁴ Hz. ν₂ = c/λ₂ = (3.00 x 10⁸ m s⁻¹) / (589.6 x 10⁻⁹ m) = 5.08819 x 10¹⁴ Hz. The energy difference ΔE = h(ν₁ - ν₂) = 6.626 x 10⁻³⁴ J s x (5.09337 x 10¹⁴ - 5.08819 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (0.00518 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (5.18 x 10¹¹) Hz = 3.439 x 10⁻²² J. Approximately 3.4 x 10⁻²² J.

Q: The longest wavelength doublet absorption transition is observed at 589 nm and 589.6 nm. Calculate the energy difference between the two excited states. (h = 6.626 x 10⁻³⁴ J s, c = 3.00 x 10⁸ m s⁻¹)

The correct answer is A. First, calculate the frequencies: ν₁ = c/λ₁ = (3.00 x 10⁸ m s⁻¹) / (589 x 10⁻⁹ m) = 5.09337 x 10¹⁴ Hz. ν₂ = c/λ₂ = (3.00 x 10⁸ m s⁻¹) / (589.6 x 10⁻⁹ m) = 5.08819 x 10¹⁴ Hz. The energy difference ΔE = h(ν₁ - ν₂) = 6.626 x 10⁻³⁴ J s x (5.09337 x 10¹⁴ - 5.08819 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (0.00518 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (5.18 x 10¹¹) Hz = 3.439 x 10⁻²² J. Approximately 3.4 x 10⁻²² J.

Q: What are the options for this CBSE11 question?

A. 3.4 x 10⁻²² J · B. 3.4 x 10⁻²¹ J · C. 3.4 x 10⁻²⁰ J · D. 3.4 x 10⁻¹⁹ J

Question

The longest wavelength doublet absorption transition is observed at 589 nm and 589.6 nm. Calculate the energy difference between the two excited states. (h = 6.626 x 10⁻³⁴ J s, c = 3.00 x 10⁸ m s⁻¹)

FirstInTest · Accepted Answer

First, calculate the frequencies: ν₁ = c/λ₁ = (3.00 x 10⁸ m s⁻¹) / (589 x 10⁻⁹ m) = 5.09337 x 10¹⁴ Hz. ν₂ = c/λ₂ = (3.00 x 10⁸ m s⁻¹) / (589.6 x 10⁻⁹ m) = 5.08819 x 10¹⁴ Hz. The energy difference ΔE = h(ν₁ - ν₂) = 6.626 x 10⁻³⁴ J s x (5.09337 x 10¹⁴ - 5.08819 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (0.00518 x 10¹⁴) Hz = 6.626 x 10⁻³⁴ J s x (5.18 x 10¹¹) Hz = 3.439 x 10⁻²² J. Approximately 3.4 x 10⁻²² J.

Answer

3.4 x 10⁻²² J

Answer

3.4 x 10⁻²¹ J

Answer

3.4 x 10⁻²⁰ J

Answer

3.4 x 10⁻¹⁹ J

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