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When the solution of substance X is added to a solution of potassium iodide, then a a yellow solid separates out from the solution. (a) What do you think sub...
The potential energy function for the force between two atoms in a diatomic molecule is approximately given by `U(x) =a/x^(12)-b/x^(6)` where a and b are con...
Energy is supplied at a constant rate to a fixed mass of a solid substance until it starts to boil. The graph shows how its temperature varies with time. T/C...
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A certain substance has a mass of 50 g for 1 mole. When 300 J of heat is added to 25 g of sample of this material, its temperature rises from 25^∘C to 45^...
In video, we are going to show you how to calculate the number of atoms in a substance using Avogadro''s number of particles. This tutorial will help you to u...
5.1 Energy change when the temperature of a substance is changed [SL IB Chemistry] - . Richard Thornley. 71.5K subscribers. Subscribed. 339. 56K views 12 years ago. How much hotter...
ALEKS - Using Heat of Fusion or Vaporization to Find the Heat Needed to Melt or Boil A Substance. If you would like to request an ALEKS video, just email me the topic name at tony ...
In a solid ( A B ). A atoms are in ccp arrangement and B atoms occupy all the octahedral sites. If two atoms from the opposite faces are removed, then the ...
During smelting, an additional substance is added which combines with impurities to form a fusible product. The substance added is known as :
This video contains the derivation of the formula for the self energy due to a solid uniformly charged sphere by energy density method
Write a balanced equation describing each of the following chemical reactions.When solid sodium chloride is added to aqueous sulfuric acid, hydrogen chloride...
Official May 2022 US SAT Section 4 Question 23:The heat capacity of a substance is the amount of energy, in joules (J), required to raise the temperature of ...
When 40 kJ of energy is transferred to a quantity of a liquid substance, itstemperature increases by 20 K. When 600 kJ of energy is transferred tothe same qu...
Electrons in a sample of H-atoms make transition from state n=x to some lower excited state. The emission spectrum from the sample is found to contain only t...
535 views 4 years ago. A substance is in the solid form at `0^@`C. The amount of heat added to this substance and its temperature are plotted in the following graph. If the relative...
A solid substance is at ( 30^{circ} mathrm{C} ). To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as s...
The energy absorbed by each molecule `(A_2)` of a substance is `4.4 xx 10^-19 J` and bond energy per molecule is `4.0 xx 10^-19 J`. The kinetic energy of the...
A certain substance has a mass of 50/gmol. When 300 J of heat is added to 25 g of sample of this material, its tempertuare rises from 25 to `45^(@)`C. Calcua...
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Please add description.The potential energy function for the force between two atoms in a diatomic molecule is approximate given by `U(r) = (a)/(r^(12)) - (b...
Find the energy that should be added to an electron of energy 2eV to reduce its de-Broglie wavelength from 1nm to 0.5nm.Class: 12Subject: PHYSICSChapter: DUA...
Complete the reaction. Add hydrogen atoms and charges to the appropriate atoms OH HCI CH3 - CHz N–CH3 heatWatch the full video at:
An Introduction to Thermal PhysicsDaniel V. SchroederProblem 1-33An ideal gas is made to undergo a cyclic process shown in the figure to the right. For each ...
The density of solid argon is `(2)/(3) ("amu"//& #197;^(3))` at 40K. If the Argon atom is assumed to be sphere to radius `(3)/(pi^(1//3)) & #197;`, what percentage of so...
When the solid A is added to water, it dissolves with the evolution of a lot of heat and making little explosionsto form two products B and C. The properties...
A gas of identical hydrogen like atoms has some atoms in the lowest (ground) energy level A and some atoms in a particular upper (excited) energy level B and...
A substance is in the solid form at (0^{circ} C). The amount of heat added to this substance and its temperature are plotted in the following graph. If th...
In a solid AB, A atoms have a ccp arrangement and B atoms occupy all the octahedral sites. If all the face-centred atoms along one of the axes passing throug...
A solution is prepared by adding 2g of substance A to 18g of water. The mass percent of the solute.
A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 & #176;C to 89.6 & #176;C.(a) What is the specific heat of the subst...
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