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For each population, find the mean of the sampling distribution of the sample mean with an indicating sample size,n.
A.7,10,19,20 ; n=2
B.46,51,55,59,61 ; n=3
C.24,26,29,32,35 ; n=4
6.371 kg of water vapour are contained at 150 kPa ad 90 per cent quality in a
suitable enclosure. Calculate the heat which must be added in order to just
produce a saturated vapor. What will the pressure be at the end of the
heating process? NOTE: - INDICATE THE HS and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE
6.86 kg of water vapour are contained at 150 kPa ad 90 per cent quality in a
suitable enclosure. Calculate the heat which must be added in order to just
produce a saturated vapor. What will the pressure be at the end of the
heating process? NOTE: - INDICATE THE HS and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE
0.5 kg aluminium block is heated to 1000C and quickly placed into a beaker which contains water at 400C. If the final temperature of the system is 440C and specific heat of aluminium is 900 J/kg0C, calculate the mass of water
How much heat (kJ) is required to convert 50 grams of ethanol into its vapor or gaseous form? How much heat is released if the same amount of vaporized ethanol is available to return to its liquid form?
the following are the height of 8 students in centimeters suppose sampe of size 3 are taken from this population of 8 students.
student height
a 120
b 130
c 110
d 125
e 152
f 170
g 137
h 155
a) how many sample are possible? list them and cmpute the mean of each example?
b) construct the sampling distribution of the sample means
c) construct the histogram of the sampling distribution of the sample means
How many moles of potassium ions are in solution when 47.12g of K3PO4 is dissolved in water?
0.2 kg coffee at 900C is placed on beaker (specific heat of beaker is 700 J/kg0C) at 200C. the final temperature of the system is 760C. Calculate the mass of the beaker
6.86 kg of water vapor are contained at 150 kPa ad 90 percent quality in a
suitable enclosure. Calculate the heat in kJ which must be added in order to just
produce a saturated vapor. NOTE: - INDICATE THE HS and TS DIAGRAM - INDICATE THE INITIAL AND FINAL STATE OF THE SUBSTANCE
200 grams metal at 1000C is placed on calorimeter which contains 300 grams water at 180C. If the specific heat of metal is 140 J/kg0C, determine the final temperature of the system!
#340153 on Dec 2023