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If a firm has a total revenue of R80 000 per annum and economic cost of R110 000, it earns an economic profit of R30 000.
1. True
2. False
Both product curves and cost curves are based on the law of diminishing returns.
1. True
2. False
If total cost increases, the marginal cost is positive.
1. True
2. False
What is the answer of "express the null hypothesis and alternative hypothesis in notation form of the scenario " it is believe that we that the mean yearly salary of professors in the philippines is 480,000.00 p pesos. a random sample of 65 professors revealed a mean salary of 500,000.00 pesos. can it be concluded the the mean salary is greater than 480,000.00 pesos? "
The air-dried and sieved soil was placed into pots with a 25 cm diameter and a 27 cm height (8 kg per pot). Sulphur was used as the S source and the application rates were 0, 150, 300 mg kg−1 . The Se source was sodium selenite (Na2SeO3) and it was applied at 0 and 15 mg kg−1.
I will like to understand how they got the amount of selenite and sulphur added to the pot experiment?
An experimental data on the reaction of H2 and PO3-3 is given below:
Experiment No. Initial [PO3-3] Initial [H2] Initial Rate
1 0.100 0.100 1.50
2 0.200 0.100 3.00
3 0.100 0.200 6.00
a. What is the order of reaction with respect to [PO3-3]?
b. What is the order of reaction with respect to [H2]?
c. What is the overall reaction?
Let R1 and R2 be the relations on { 1, 2, 3, 4 } given by
R1 = { (1,1), (1,2), (3,4), (4,2) }
R2 = { (1,1), (2,1), (3,1), (4,4), (2,2) }
List the elements of R2 Ο R1
ESSAY.
Water, compared to other substances, has one of the highest specific heat values. What is the advantage of this fact for the human body?
Direction: Solve the following problems. Attach your solutions.
1. Calculate the standard enthalpy change ΔH°, for the following reaction:
2CH3OH (l) + 3O2 (g) --> 2CO2 (g) + 2H2O (g)
Given: CH3OH (l) -------> ΔHf° = -238.7 kJ
CO2 (g) -------> ΔHf° = -393.5 kJ
H2O (l) -------> ΔHf° = -285.8 kJ
1.Calculate the enthalpy change for the following chemical reaction:
SC2(l) + 3O@(g) --> CO2(g) + 2SO2(g)
1.C(s) + O2(g) --> CO2(g) ΔH° = - 393.5 kJ
2.S(s) + O2(g) --> SO2(g) ΔH° = - 296.8 kJ
3.C(s) + 2S(s) --> CS2(l) ΔH° = + 87.9 kJ
a pot of cold water is heated on a stove, and when the water boils, a fresh egg is placed in the water to cook. describe the events that are occuring in terms of the zeroth law of thermodynamics.
