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3 years ago

Help with all of these please!

Chemistry

1 answer:

Dovator [93]3 years ago

3 0

Answer:

Is that chemistry ??? Goodnight

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The reaction between nitrogen dioxide and carbon monoxide is NO2(g)+CO(g)→NO(g)+CO2(g)NO2(g)+CO(g)→NO(g)+CO2(g) The rate constan

galina1969 [7]

Answer:

$k_2=2.55\ {Ms}^{-1}$

Explanation:

Using the expression,

$\ln \dfrac{k_{1}}{k_{2}} =-\dfrac{E_{a}}{R} \left (\dfrac{1}{T_1}-\dfrac{1}{T_2} \right )$

Where,

$k_1\ is\ the\ rate\ constant\ at\ T_1$

$k_2\ is\ the\ rate\ constant\ at\ T_2$

$E_a$ is the activation energy

R is Gas constant having value = 8.314 J / K mol

$k_2=?$

$k_1=2.57\ {Ms}^{-1}$

$T_1=701\ K$

$T_2=525\ K$

$E_a=1.5\times 10^2\ kJ/mol$

So,

$\ln \:\frac{2.57}{k_2}\:=-\frac{1.5\times \:10^2}{8.314}\times \left(\frac{1}{701}-\frac{1}{525}\right)\:\:$

$k_2=\frac{2.57}{e^{\frac{352}{40796.798}}}=2.55\ {Ms}^{-1}$

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3 years ago

When is di- used in the name of a hydrocarbon?

eimsori [14]

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Mia looked at a graph showing average global temperatures. She noticed that the average temperatures have risen abruptly over th

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3 years ago

Example of gas gas mixture

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Air is the most simplest mixture of gas and gas. It contains oxygen, CO2, nitrogen, etc.

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3 years ago

Why did construction of the Panama Canal become

sukhopar [10]

Answer:

(4) The navy needed a faster way to move ships between the Atlantic and Pacific Oceans.

Explanation:

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The construction of the Panama Canal became more important to the United States after the Spanish-American War because the navy needed a faster way to move ships

between the Atlantic and Pacific Oceans.

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4 years ago