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Describe if the following reaction is spontaneous or non-spontaneous based on enthalpy, entropy and Gibbs energy:
H = 345J/mol
S = -6345J/K*mol and
G = 2355J at room temperature
You are preparing soft maize porridge at home using the following procedure: 1) the maize meal is suspended in cold water, 2) it is added to a pan with boiling water and brought to the boil, 3) it is cooked on the stove for 20 minutes while stirring continuously, 4) after cooking the porridge is removed from the stove and cooled to room temperature, 5) it is then stored it the refrigerator until the next day. Explain the chemical, physical and viscosity changes that starch in the maize meal and porridge undergoes during each stage of the process
Solve the following thermochemical reactions:
2 HCl + Pb
PbCl2 + H2
H = -1861 J/mole
What is the enthalpy if there was 3.86g of PbCl2?
Calculate the reaction entropy (S°rxn) for the following reaction: NaCl + AgNO3 >
AgCl + NaNO3
Calculate the reaction entropy (S°rxn) for the following reaction: Si + 2 Cl2 > SiCI4
Mr M is considering a low carbohydrate diet. This diet initially restricts carbohydrate intake to 20g per day for the first two weeks.
Q3. Describe the underlying biochemistry in these two weeks.
Mr M has been steadily putting on weight over many years. He recently attended a medical at work where his height and weight were recorded. It was determined that he now has a Body Mass Index of 35kgm-2.
Q2.
Describe how excess energy substrates from carbohydrates, fats and proteins are stored in the body.
Explain the chemical, physical and viscosity changes that starch in the maize meal and porridge undergoes during each stage of the process
Write a program to find the winner of each round of game based on the shape of players chose
Mr M has been steadily putting on weight over many years. He recently attended a medical at work where his height and weight were recorded. It was determined that he now has a Body Mass Index of 35kgm-2.
Q1.
If his height is 1.68m what is his weight? Comment whether this would be concern?
#339914 on Dec 2023