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3 years ago

Explain what happens to energy and matter during a chemical reaction.

Chemistry

1 answer:

AlekseyPX3 years ago

4 0

According to law of conservation of matter and energy, amount of both of them will remain same

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2 years ago

In methane combustion, the following reaction pair is important: At 1500 K, the equilibrium constant Kp has a value of 0.003691

andre [41]

Explanation:

Let us assume that the value of $K_{r}$ = $2.82 \times 10^{5} \times e^({\frac{-9835}{T}}) m^{6}/mol^{2}s$

Also at 1500 K, $K_{r}$ = $2.82 \times 10^{5} \times e^({\frac{-9835}{1500}}) m^{6}/mol^{2}s$

$K_{r} = 400.613 m^{6}/mol^{2}s$

Relation between $K_{p}$ and $K_{c}$ is as follows.

$K_{p} = K_{c}RT$

Putting the given values into the above formula as follows.

$K_{p} = K_{c}RT$

$0.003691 = K_{c} \times 8.314 \times 1500$

$K_{c} = 2.9 \times 10^{-7}$

Also, $K_{c} = \frac{K_{f}}{K_{r}}$

or, $K_{f} = K_{c} \times K_{r}$

= $2.9 \times 10^{-7} \times 400.613$

= $1.1617 \times 10^{-4} m^{6}/mol^{2}s$

Thus, we can conclude that the value of $K_{f}$ is $1.1617 \times 10^{-4} m^{6}/mol^{2}s$ .

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2 years ago

When the concentration of hydrogen lons equals the concentration of hydroxide ions, is called the ?

Ira Lisetskai [31]

Answer:

neutral pH or neutral solution

Explanation:

when hydrogen ion concentration and hydroxide ion concentration the pH is neutral i.e. ph=pOH=7

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2 years ago

What are the nine major plates of the lithosphere

artcher [175]

North American plate
Pacific plate
Nazca plate
Antarctic plate
south American plate
African plate
Eurasian plate
indo-austrailian plate

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3 years ago

Suppose that the expected value of a measurement is 17 N.

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2 years ago

Read 2 more answers