1) one way to determine if a relationship is inverse or direct is to find a prop
ID: 517870 • Letter: 1
Question
1) one way to determine if a relationship is inverse or direct is to find a proportionality constant k from the data. if this relationship is direct k =P÷T if it is inverse k =P.T. determine which calculation P ÷T or P.T produces a valid value for K. show your results in the fourth and fifth column of the data table. based on your data which formula produces the most constant value for k. how "constant " were your values?
2) according to this experiment what should happen to the pressure of a gas if the Kelvin temperature is doubled? check this assumption by finding the pressure at -73 degree Celsius (200K) and at 127 degree Celsius (400 K) on your gragh of pressure versus temperature how do these two pressure values compare?
3) write an equation to express the relationship between pressure and temperature k use the symbols P, T and K.
Explanation / Answer
Inversely Proportional means when one value decreases at the same rate that the other increases.
The fourth column of the data table
P = 100.67KPa
T = 36.30C = 36.3 + 273.15 = 309.45
Value for k by using formula
K = p/ T
K = P/T= 100.67/309.45 = 0.3253
K = P.T
K= 100.67 x 309.45 = 31152.33
The fifth column of the data table
P = 113.47KPa
T = 79.7C = 79.7 + 273.15 = 352.85
Value for k by using formula
K = p/ T
K = P/T= 113.47/352.85 = 0.3315
K = P.T
K= 100.67 x 309.45 = 40037.88
The most constant value for k = P/T
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