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Alexeev081 [22]
3 years ago
13

Above the critical pressure, a substance is a(n) _____ fluid.

Chemistry
2 answers:
olga2289 [7]3 years ago
8 0
The correct answer among the choices given is option C. Above the critical pressure, a substance is a supercritical fluid. This fluid is any substance at a temperature and pressure above the critical point here the phases of the liquid and the gas do not exist.
Kruka [31]3 years ago
3 0

Dunno why the answer above has been reported, but they're correct, the answer is C.

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Identity each of the following catalysts as
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Heterogeneous

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A food substance kept at 0°C becomes rotten (as determined by a good quantitative test) in 8.3 days. The same food rots in 10.6
ZanzabumX [31]

Answer:

1.   67.2 kJ/mol

Explanation:

Using the derived expression from Arrhenius Equation

In \ (\frac{k_2}{k_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

Given that:

time t_1 = 8.3 days = (8.3 × 24 ) hours = 199.2 hours

time t_2 = 10.6 hours

Temperature T_1 = 0° C = (0+273 )K = 273 K

Temperature T_2 = 30° C = (30+ 273) = 303 K

Rate = 8.314 J / mol

Since (\frac{k_2}{k_1}=\frac{t_2}{t_1})

Then we can rewrite the above expression as:

In \ (\frac{t_2}{t_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

In \ (\frac{199.2}{10.6}) = \frac{E_a}{8.314}(\frac{303-273}{273*303})

2.934 = \frac{E_a}{8.314}(\frac{30}{82719})

2.934 = \frac{30E_a}{687725.766}

30E_a = 2.934 *687725.766

E_a = \frac{2.934 *687725.766}{30}

E_a =67255.58 \ J/mol

E_a =67.2 \ kJ/mol

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3 years ago
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Answer:

the answer is B proteins

Explanation:

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Brainliest for best answer
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b is answer

Explanation:

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