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il63 [147K]
3 years ago
7

Which process is an example of an exothermic reaction?

Chemistry
2 answers:
kotegsom [21]3 years ago
8 0
A process that is an example of exothermic reaction would be this for example

<span>1. the formation of ice cubes
2. condensation of rain from vapor
3. rusting iron
4.burning sugar
5. mixing water with acids</span>
earnstyle [38]3 years ago
6 0
An example of an exothermic reaction is Combustion (burning)
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Ksivusya [100]
<h2>Hello!</h2>

The answer is:

We have that there were produced 0.120 moles of CO_{2}

n=0.120mol

<h2>Why?</h2>

We are asked to calculate the number of moles of the given gas, also, we  are given the volume, the temperature and the pressure of the gas, we can calculate the approximate volume using The Ideal Gas Law.

The Ideal Gas Law is based on Boyle's Law, Gay-Lussac's Law, Charles's Law, and Avogadro's Law, and it's described by the following equation:

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R=62.363\frac{mmHg.L}{mol.K}

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We can convert from Celsius degrees to Kelvin using the following formula:

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Now, isolating the number of moles, and substituting the given information, we have:

PV=nRT

n=\frac{PV}{RT}

n=\frac{PV}{RT}

n=\frac{760mmHg*2.965L}{62.363\frac{mmHg.L}{mol.K}*298.5K}

n=\frac{760mmHg*2.965L}{62.363\frac{mmHg.L}{mol.K}*298.5K}\\\\n=\frac{2242mmHg.L}{18615.355\frac{mmHg.L}{mol.}}\\\\n=0.120mole

Hence, we have that there were produced 0.120 moles of CO_{2}

n=0.120mol

Have a nice day!

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