Two of the types of ultraviolet light, uva and uvb, are both components of sunlight. their wavelengths range from 320 to 400 nm
2 answers:
Response:
uvb > uva > microwaves
Justification:
The energy associated with an electromagnetic wave is given by
Where
h represents Planck's constant
c signifies the speed of light and
is the frequency
This helps us conclude that energy is inversely related to wavelength
The wavelength ranges are as follows:
1. microwaves - 1 mm - 1m
2. uva - 320 - 400 nm
3. uvb - 290 - 320 nm
Consequently, due to its shorter wavelength, uvb is the form possessing the highest energy, while microwaves, with their larger wavelength range, exhibit the least energy; thus, the conclusion is uvb > uva > microwaves
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Answer:
The required energy remains identical in both scenarios since the specific heat capacity (Cp) does not change with varying pressure.
Explanation:
Given;
initial temperature, t₁ = 50 °C
final temperature, t₂ = 80 °C
Temperature change, ΔT = 80 °C - 50 °C = 30 °C
Pressure for scenario one = 1 atm
Pressure for scenario two = 3 atm
The energy needed in both scenarios is expressed as;
Where;
Cp denotes specific heat capacity, which only varies with temperature and remains unaffected by pressure.
Hence, the energy required remains the same for both scenarios since specific heat capacity (Cp) is pressure-independent.