Answer:
<u>The Standard enthalpy of reaction:</u>
Explanation:
Given- Standard Heat of Formation:
= -3110 kJ/mol,
= -286 kJ/mol,
= -1279 kJ/mol
<u><em>Given chemical reaction:</em></u> P₄O₁₀(s) + 6H₂O → 4H₃PO₄
<em>The standard enthalpy of reaction:</em> = ?
<u><em>To calculate the Standard enthalpy of reaction</em></u> (), <u><em>we use the equation:</em></u>
<u>Therefore, the Standard enthalpy of reaction:</u>
False
Explanation:
Dispersion forces are the weakest of all intermolecular forces. They are appropriately called London dispersion forces or LDF.
- They are the weakest form of intermolecular forces.
- Crystal lattice forces are the strongest intermolecular forces that holds crystalline substances together.
- London dispersion forces are weak attractions found between non-polar to polar molecules and noble gases.
- The attraction is as a result of non-polar substances becoming polar in nature.
- This is due to the constant motion of electrons which leads to uneven distribution of electrons.
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Intermolecular forces brainly.com/question/10107765
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A hypothesis is a prediction of what you believe to be true.
Real and virtual images.<span> In a dark room one can form an image of a candle flame on a white screen by letting the rays from the candle pass through a small opening. See Fig. 1. This idea is used in the pinhole camera. The pinhole camera is simply a light-proof box with a tiny pinhole in the front and photographic film stretched across the rear wall. See Fig. 2. One uncovers the pinhole for a minute or so, then covers it back up, to take a picture. If it is held steady, it can take a good picture. If one replaces the pinhole with a lens, the intensity of the incident light is increased and a sharp image can be recorded in a fraction of a second. The image formed by a pinhole or a lens is formed by incident rays of light on a surface and stands in contrast to another kind of image — the kind of image formed by a mirror. The image formed by a mirror is not real, it is an illusion formed by the way the light reflects off the mirror. The image seen in a mirror looks three dimensional and real but we know there is nothing where the image appears to be. An image such as that formed by a pinhole or lens is called a </span>real image<span>. An image such as that formed by a mirror is called a </span>virtual<span> image</span>
Answer:
C. it will increase at first, then remain constant
Explanation: