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3 years ago

Does temperature change during a chemical reaction?

Chemistry

2 answers:

Serga [27]3 years ago

7 0

Answer: Yes

Explanation: Temperature change is a type of chemical reaction, caused by the effect the two reactants have on each other when mixed.

Anarel [89]3 years ago

4 0

Answer: yes

Explanation:

Not all the time, but temperature change can happen during a chemical reaction.

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Answer : The mass of $NaN_3$ required is, 166.4 grams.

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First we have to calculate the moles of nitrogen gas.

Using ideal gas equation:

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P = Pressure of $N_2$ gas = 1.00 atm

V = Volume of $N_2$ gas = 113 L

n = number of moles $N_2$ = ?

R = Gas constant = $0.0821L.atm/mol.K$

T = Temperature of $N_2$ gas = $85^oC=273+85=358K$

Putting values in above equation, we get:

$1.00atm\times 113L=n\times (0.0821L.atm/mol.K)\times 358K$

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Now we have to calculate the moles of sodium azide.

The balanced chemical reaction is,

$2NaN_3(s)\rightarrow 2Na(s)+3N_2(g)$

From the balanced reaction we conclude that

As, 3 mole of $N_2$ produced from 2 mole of $NaN_3$

So, 3.84 moles of $N_2$ produced from $\frac{2}{3}\times 3.84=2.56$ moles of $NaN_3$

Now we have to calculate the mass of $NaN_3$

$\text{ Mass of }NaN_3=\text{ Moles of }NaN_3\times \text{ Molar mass of }NaN_3$

Molar mass of $NaN_3$ = 65 g/mole

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3 years ago

A peregrine falcon can travel 537,600 furlong/fortnight. A race car travels 212ft/s. A spider can jump with a maximum velocity o

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Convert everything to one base unit (let's do ft/s in this case)
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The race car is already in ft/s

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4 years ago

Does temperature change during a chemical reaction?​

Does temperature change during a chemical reaction?