Question
In: Chemistry
The excess Gibbs energy for liquid argon-methane mixtures have been measured at several temperatures. The results...
The excess Gibbs energy for liquid argon-methane mixtures have
been measured at several temperatures. The results are gE/(RT) =
xAr(1 ? xAr[A + B(1 ? 2xAr)]
where numerical values for the parameters are given as T(K) =
109.0, A = 0.3024, B = -0.01453 T(K) = 112.0, A = 0.2929, B =
-0.01169 T(K) = 115.75, A = 0.2792, B = +0.05115
Compute the following: 1. The activity coefficients of argon and
methane at 112.0 K and xAr = 0.5. 2. The molar isothermal enthalpy
change on producing an xAr = 0.5 mixture from its pure components
at 112.0 K. 3. The molar isothermal entropy change in producing an
xAr = 0.5 mixture from its pure components at 112.0 K.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
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The following data show the rate constant of a reaction measured at several different temperatures. Temperature...
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at several different temperatures. Temperature (K) at 310 has a
rate constant (1/s) of 4.65×10^−2 . Temperature (K) at 320 has a
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Annual high temperatures in a certain location have been tracked for several years. Let XX represent...
Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
correlation coefficient (to three decimal places) between XX and
YY. Use your calculator!
x
y
1
20.7
2
19.6
3
21.9
4
24.1
5
24.2
6
26.8
7
24.1
8
28.2
9
27.2
10
30.5
r=______
2. Annual high temperatures in a certain location have been tracked for several years. Let XX...
2. Annual high temperatures in a certain location have been
tracked for several years. Let XX represent the year and YY the
high temperature. Based on the data shown below, calculate the
regression line (each value to two decimal places).
Y = ____ x + _____
x
y
3
12.12
4
17.26
5
16.3
6
21.04
7
20.98
8
24.52
4. Annual high temperatures in a certain location have been
tracked for several years. Let XX represent the year and...
Annual high temperatures in a certain location have been tracked for several years. Let X represent...
Annual high temperatures in a certain location have been tracked
for several years. Let X represent the number of years after 2000
and Y the high temperature. Based on the data shown below,
calculate the linear regression equation using technology (each
constant to 2 decimal places).
x
y
2
34.82
3
33.28
4
34.84
5
35.1
6
33.26
7
35.42
8
34.18
9
34.54
10
34.4
11
35.86
12
35.12
13
37.88
The equation is?
Interpret the slope
For each...
Annual high temperatures in a certain location have been tracked for several years. Let XX represent...
Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
correlation coefficient (to three decimal places) between XX and
YY. Use your calculator!
x
y
4
18.52
5
20.9
6
20.58
7
23.36
8
26.94
9
28.52
10
32.4
11
35.18
12
37.76
13
39.24
14
43.52
15
44.4
16
47.08
17
50.86
r=
Annual high temperatures in a certain location have been tracked for several years. Let XX represent...
Annual high temperatures in a certain location have been tracked
for several years. Let XX represent the year and YY the high
temperature. Based on the data shown below, calculate the
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y = x +
x
y
5
27.1
6
26.18
7
31.16
8
31.14
9
32.42
10
36.6
11
37.28
12
39.46
13
41.84
14
44.42
15
44.4
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