ABC26PH0486 · The moment of iertia of a homonuclear diatomic molecular is 7.510-45\,kg\,m2. Its rotational partition function at 500 K is ____ · 2005-2021
ABC26PH0487 · A plot of osmotic pressure against concentration (gL-1 ) of a polymer is constructed. The slope of the plot · 2005-2021
ABC26PH0488 · Out of the following, the one which is not an excitation source for IR spectrometer is · 2005-2021
ABC26PH0489 · The zero-point energy of the vibration of 35 Cl2 mimicking a harmonic oscillator with a force constant k=2293.8 Nm-1 is · 2005-2021
ABC26PH0490 · The molecular active in rotational microwave, infrared absorption as well as rotational Raman spectra is: · 2005-2021
ABC26PH0491 · The selection rules for the appearance, of P branch in the rotational - vibrational absorption spectra of a diatomic molecule within rigid… · 2005-2021
ABC26PH0492 · The rotational constant for CO in the ground and the first excited vibrational states are 1.9 and 1.6\,cm-1, respectively. The % change in… · 2005-2021self-practice
ABC26PH0493 · The fundamental transition (cm-1 ) of the diatomic molecule is at: · 2005-2021
ABC26PH0494 · The anharmonicity constant (cm-1 ) of the diatomic molecule is: · 2005-2021
ABC26PH0495 · The fundamental vibrational wavenumbers for H2 and I2 are 4403.2 cm-1 and 214.5 cm-1, respectively. The relative population of the first… · 2005-2021
ABC26PH0496 · The rotational Raman spectrum of 19 F2 shows a series of Stokes lines at 19230.769 cm-1, 19227.238 cm-1 and 19223.707 cm-1. The rotational… · 2005-2021self-practice
ABC26PH0497 · The most populated rotational state for HCl (B=8.5 cm-1 ) at 300 K is: · 2005-2021
ABC26PH0498 · The ratio of life times of two states that gives rise to line widths of 1.0 cm-1 and 0.2 cm-1 respectively is: · 2005-2021
ABC26PH0499 · The region of electromagnetic spectrum employed in the electron spin resonance (ESR) spectroscopy is: · 2005-2021
ABC26PH0500 · The point group symmetry of the given planar shape is: · 2005-2021
ABC26PH0501 · The frequency of radiation (in cm-1 units) required to vibrationally excite the molecule from v=0 to v=1 state is · 2005-2021
ABC26PH0502 · The frequency of radiation (in cm-1 units) required to rotationally excite the molecule from J=0 to J=1 state is · 2005-2021
ABC26PH0503 · The bond that gives the most intense band in the infrared spectrum for its stretching vibrations is · 2005-2021self-practice
ABC26PH0504 · The rotational constant (usually denoted as B ) for the oxygen molecule is · 2005-2021self-practice
ABC26PH0505 · The next rotational Stokes line is expected at · 2005-2021
ABC26PH0506 · the infrared spectrum of HCl gas shows an absorption band centered at 2885 cm-1. The zero point energy of HCl molecule under hamonic… · 2005-2021
ABC26PH0507 · The number of IR active vibrational normal modes of CO2 is ____ · 2005-2021self-practice
ABC26PH0508 · Of the vibrational modes given below, the IR active mode(s) is(are) (i) (ii) (iii) · 2005-2021
ABC26PH0509 · For a diatomic vibrating rotor, in vibrational level v=3 and rotational level J , the sum of the rotational and vibrational energies is… · 2005-2021
ABC26PH0510 · The spacing between the two adjacent lines of the microwave spectrum of H35Cl the corresponding spacing for D35Cl is ____ 1011\,Hz. (Upto… · 2005-2021self-practice
ABC26PH0511 · The frequency (in cm-1, rounded off to two decimal places) for pure rotational line in the spectrum of NO molecule due to change in the… · 2005-2021self-practice
ABC26PH0512 · Assuming no interaction between vibrational and rotational energy levels in HF , the frequency (in cm-1, rounded off to the nearest… · 2005-2021self-practice
ABC26PH0513 · The fundamental vibrational frequency of 1 H127 I is 2309 cm-1. The force constant for this molecule (rounded off to the nearest integer)… · 2005-2021self-practice
ABC26PH0514 · In the following reaction X the major products X and Y, respectively, are: · 2005-2021