q596
A gas based geyser heats water flowing at the rate of 5.0 litres per minute from 27°C to 87°C. The […]
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The electric field in a plane electromagnetic wave is given by : E_y = 69 sin [0.6 × 10^3 x − 1.8 × 10^11 t] V/m. (A) B_z = 2.3 × 10^−7 sin [0.6 × 10^3 x − 1.8 × 10^11 t] (B) B_z = 2.3 × 10^−7 sin [0.6 × 10^3 x + 1.8 × 10^11 t] (C) B_y = 2.3 × 10^−7 sin [0.6 × 10^3 x − 1.8 × 10^11 t] (D) B_y = 69 sin [0.6 × 10^3 x + 1.8 × 10^11 t]
The electric field in a plane electromagnetic wave is given by Ey = 69 sin [0.6 × 10^3 x −
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Initially a satellite of 100 kg is in a circular orbit of radius 1.5RE. This satellite can be moved to a circular orbit of radius 3RE by supplying α × 10^6 J of energy The value of α is ____ . (Take Radius of Earth RE = 6 × 10^6 m and g = 10 m/s^2 )
Initially a satellite of 100 kg is in a circular orbit of radius 1.5Rₑ. This satellite can be moved to
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MX is a sparingly soluble salt that follows the given solubility equilibrium at 298 K. MX(s) ⇌ M⁺(aq) + X⁻(aq); Ksp = 10⁻10 If the standard reduction potential for M⁺(aq) + e⁻ → M(s) is (E°M⁺/M) = 0.79 V, then the value of the standard reduction potential for the metal/metal insoluble salt electrode E°X⁻/MX(s)/M is ______ mV. (nearest integer) [Given: 2.303RT/F = 0.059 V]
MX is a sparingly soluble salt that follows the given solubility equilibrium at 298 K. The standard reduction potential for
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A substance ‘X’ (1.5 g) dissolved in 150 g of a solvent ‘Y’ (molar mass = 300 g mol⁻¹) led to an elevation of the boiling point by 0.5 K. The relative lowering in the vapour pressure of the solvent ‘Y’ is ______ × 10⁻2. (nearest integer) [Given: Kb of the solvent = 5.0 K kg mol⁻1] Assume the solution to be dilute and no association or dissociation of X takes place in solution.
A substance ‘X’ (1.5 g) dissolved in 150 g of a solvent ‘Y’ led to an elevation of the boiling
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The first and second ionization constants of H2X are 2.5 × 10⁻8 and 1.0 × 10⁻13 respectively. The concentration of X2− in 0.1 M H2X solution is ______ × 10⁻15 M. (Nearest Integer)
The first and second ionization constants of H2X are 2.5 × 10⁻8 and 1.0 × 10⁻13 respectively. The concentration of
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The osmotic pressure of a living cell is 12 atm at 300 K. The strength of sodium chloride solution that is isotonic with the living cell at this temperature is ________ g L⁻¹. (Nearest integer) Given : R = 0.08 L atm K⁻¹ mol⁻¹ Assume complete dissociation of NaCl (Given: Molar mass of Na and Cl are 23 and 35.5 g mol⁻¹ respectively.)
The osmotic pressure of a living cell is 12 atm at 300 K. The strength of sodium chloride solution that
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Identify the metal ions among Co2+, Ni2+, Fe2+, V3+ and Ti2+ having a spin-only magnetic moment value more than 3.0 BM. The sum of unpaired electrons present in the high spin octahedral complexes formed by those metal ions is ________ .
Identify the metal ions among Co2+, Ni2+, Fe2+, V3+ and Ti2+ having a spin-only magnetic moment value more than 3.0
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Aqueous HCl reacts with MnO2(s) to form MnCl2(aq), Cl2(g), and H2O(l). What is the weight (in g) of Cl2 liberated when 8.7 g of MnO2(s) is reacted with excess aqueous HCl solution? (Given Molar mass in g mol⁻¹ Mn = 55, Cl = 35.5, O = 16, H = 1)
Aqueous HCl reacts with MnO2(s) to form MnCl2(aq), Cl2(g), and H2O(l). What is the weight (in g) of Cl2 liberated
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Consider the following spectral lines for atomic hydrogen : A. First line of Paschen series B. Second line of Balmer series C. Third line of Paschen series D. Fourth line of Brackett series The correct arrangement of the above lines in ascending order of energy is :
Consider the following spectral lines for atomic hydrogen : A. First line of Paschen series B. Second line of Balmer