Q4: The average heat evolved by the oxidation of food in an average adult per hour per kilogram of body weight is 7.20 ୩ ୩ ୦୰.
1 answer:
Answer:
The entropy change of the surroundings associated with this heat transfer is 255.9J/K
Explanation:
The heat evolved by the oxidation of food is 7.2J/Kg.h thus, multiplying the heat by the weight of the person and by the time the total heat (q) is obtained. In this case, the weight is 62.0Kg and a weak has 168 hours.
The entropy change of the surrounding associated with this heat transfer can be calculated by the ratio between the heat exchanged and the temperature.
ΔS =
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Answer:
35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.
Explanation:
..[1]
Heat of vaporization of acetic acid =
..[2]
Heat of fusion of acetic acid =
Heat of sublimation of acetic acid =
..[3]
[1] + [2] = [3] (Hess's law)
35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.
Answer:
Explanation:
The Rydberg equation gives the wavelength λ for the transitions:
where
R= the Rydberg constant (1.0974 ×10⁷ m⁻¹) and
Data:
λ = 657 nm
Calculation: