Search & Filtering
The equilibrium constant, Kc, for the following reaction is 1.31×10-2 at 700 K.
NH4I(s) NH3(g) + HI(g)
Calculate Kc at this temperature for the following reaction:
NH3(g) + HI(g) NH4I(s)
Kc =
Four coins are tossed at once. Let Y be the random variable representing the number of
heads that occur.
What is the cardinality of each of these sets? a) {a} b) {{a}} c) {a, {a}} d) {a, {a}, {a, {a}}}
Determine the height at which the oak block will float above the water surface. The density of the oak is ρoak = 770 kg/m3
Calculate the wavelength of a particle with masses 9.11x10-31Kg travelling at speed 1.0x107 m/s and that of a ball of mass 0.1Kg travelling at 35 m/s. Comment on the significance of the wavelengths calculated.
A 75 kg. block of wood rest on the top of the smooth plane surface, whose length is 4 meters and whose altitude is 1.0 meter. How long will it take for th block to slide down to the bottom of the plane when released?
A new element has been discovered and all you know is that it is a noble gas Predict the number of electrons in its outer orbit and possible atomic number(s)
The work done on a stretching a spring it to 3.50 cm from its equilibrium length is 14.0 3. (a) How much force is required to stretch it at that
distance? (b) If a block of mass 2.75 kg moving at 4.8 m/s hits and runs into the same spring at its unstretched length, what is maximum compression of the spring?
Assumed that the fill amount in 2-liter soft drink bottles is normally distributed, with a mean of 2.0 liters and a standard deviation of 0.05 liter. If bottles contain less than 95% of the listed net content (1.90 liters, in this case), the manufacturer may be subject to a penalty by the state office of consumer affairs. Bottles that have a net content above 2.10 liters may cause excess spillage upon opening. What proportion of the bottles will contain (a) between 1.90 and 2.00 liters? (b) between 1.90 and 2.10 liters? (c) below 1.90 liters or above 2.10 liters? (d) At least how much soft drink is contained in 99% of the bottles? (e) 99% of the bottles contain an amount that is between which two values(symmetrically distributed) around the mean?
The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours. (a) What proportion of the population watches television for more than 7 hours per day? (b) What is the probability that the average number of hours spent watching television by a random sample of five adults is more than 7 hours? (c) What is the probability that in a random sample of five adults all watch television for more than 7 hours per day?
#340153 on Dec 2023