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Naddik [55]
3 years ago
7

A container with a fixed volume, filled with hydrogen gas at -104c and 71.8 kPa is heated until the pressure reaches 225.9 kPa.

What is the temperature of the hydrogen gas in degrees Celsius
Chemistry
1 answer:
ahrayia [7]3 years ago
8 0

Answer:

Temperature= -327.2 celsius

Explanation:

You can set up an equation:

<u>-104</u> = <u>x</u>

71.8     225.9

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Radio active decay reactions follow first order rate kinetics.

a) The half life and decay constant for radio active decay reactions are related by the equation:

t_{\frac{1}{2}} =\frac{ln 2}{k}

t_{\frac{1}{2}} = \frac{0.693}{k}

Where k is the decay constant

b) Finding out the decay constant for the decay of C-14 isotope:

Decay constant (k) = \frac{0.693}{t_{\frac{1}{2}}}

k = \frac{0.693}{5230 years}

k = 1.325 * 10^{-4} yr^{-1}

c) Finding the age of the sample :

35 % of the radiocarbon is present currently.

The first order rate equation is,

[A] = [A_{0}]e^{-kt}

\frac{[A]}{[A_{0}]} = e^{-kt}

\frac{35}{100} = e^{-(1.325 *10^{-4})t}

ln(0.35) = -(1.325 *10^{-4})(t)

t = 7923 years

Therefore, age of the sample is 7923 years.

3 0
3 years ago
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Answer:

Limiting reactants or limiting reagents decide the amount of product formed and the amount of excess reagent used.

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What are some genetic diseases?
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Muscles undergo fermentation when no carbon dioxide is available. no oxygen is available. no pyruvate is available. no water is
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