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Calculate the △G° at 298 K for the following reaction. Show your work.
Fe2O3 (s) + 13CO (g) = 2Fe(CO)5(g) + 3CO2(g)
-824.2 -110.5 -733.8 -393.5
△H° (kJ/mol)
87.4 197.6 445.2 213.6
△S° (J/mol x K)
David borrowed R911012 to refurbish his holiday home.the loans require monthly repayments over 12 years. When he borrowed the money the interest rate was 12,4% per annum compounded monthly , but five years later the bank increased the annual interest rate to 13.9% in line with market rates. After 5 years the present value of the loan is R682 081,77 with new interest rate his monthly payments will increase by?
Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. Titanium tetrachloride is extracted from titanium oxide using chlorine and coke. What mass of C is needed to react with 1.25 mol of Tio2?
If the pressure at sea level is 101.325 kPa, and assuming a constant density of 1.2550 kg/m3 , what will be the pressure at an altitude of 11,000 m
Suppose that a population of women heights is normally distributed with mean of 68
inches and standard deviation of 3 inches. If a person is selected at random, what is the
probability that her height is less than 66 inches?
Suppose it is known that 10% of the owners of two year old automobiles have had problems with their electrical system. Compute the probability of finding exactly 2 owners that have had electrical system problems out of a group of 10 owners?
The joint density function of the random variables X1, X2, X3 is given as
f(x1, x2, x3) = {
c(x1 + 2x2 + 3x3), 0 < xi < 1, i = 1, 2, 3
0, elsewhere
Determine
(i) the value of c
(ii) the joint marginal density function of X1 and X2.
Question 4
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Question 3
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Question 2:
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#340153 on Dec 2023