As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some are transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match.
The constant used for the absorption of heat by the sample in melting is
. Thus, option A is correct.
The chemical reaction has been defined as the energy in which the energy has been released or absorbed for the breaking of bonds in the reactants and the formation of product.
<h3>Constant for energy absorbed</h3>
The energy has been absorbed in the melting of the copper sample. Thus, the sample has been converted from the solid to the liquid state.
The change in energy with the conversion in solid and liquid state has been termed as heat of fusion.
The energy has been absorbed by the system, thus it has been marked with the positive sign.
Therefore,
has been the constant used for the absorption of heat by the sample in melting. Thus, option A is correct.
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Answer is D
Explanation: A gamma ray primarily consists of pure energy and no mass.
Density = mass/volume = 80 g/10cm³ = 8 g/cm³
Answer:
C. element. oxygen is an element
Explanation:
oxygen is element #8