At the particle level, when you touch a piece of hot coal the particles in the coal would transfer heat in the form of heat to your hand since the flow energy is from high energy (high temperature) to low energy (low temperature). So, the heat flow is from the coal to your hand.
When a gamma ray is emitted from the nucleus of an atom it reduces the overall energy of the nucleus. Emission of gamma rays almost happens along with beta and alpha emissions. After the two emissions, the nucleus of the atom would still be in an excited state. To achieve stability, gamma rays are emitted which will decrease the overall energy of the nucleus.
Answer:
Value of for the given reaction is 7.7
Explanation:
Where represents solubility product
For the given reaction, (concentration of pure solids remain constant during reaction. Hence their concentration is taken as 1 to exclude them from equilibrium constant expression)
So,
or,
Hence option (B) is correct
Oxygen is the limiting reagent.
<u>Explanation:</u>
2H₂ + O₂ → 2H₂O
Molar mass of H₂ = 2 g
Molar mass of O₂ = 32g
According to the balanced equation:
2 X 2g of H₂ reacts with 32 g of O₂
4g of H₂ reacts with 32g of O₂
1g of H₂ will react with = 8g of O₂
So, 16.7g of H₂ will react with = 133.6g of O₂
However, O₂ is just 15.4g
Since O₂ is present in less quantity, O₂ is the limiting reagent.
Answer:
Explanation:
Hello there!
In this case, by considering the physical definition of force in terms of mass and acceleration:
Given the generated force and the involved mass, we can compute the required acceleration as shown below:
Yet it is necessary to break out Newtons to:
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