All categories

4 years ago

If the temperature of a gas is raised from 30°C to 60°C, what happens to the pressure?

Chemistry

1 answer:

Fofino [41]4 years ago

5 0

<h3>Answer:</h3>

The pressure increases by 10% of the original pressure

Thus the new pressure is 1.1 times the original pressure.

<h3>Explanation:</h3>

We are given;

Initial temperature as 30°C, but K = °C + 273.15
Thus, Initial temperature, T1 =303.15 K
Final temperature, T2 is 333.15 K

We are required to state what happens to the pressure;

We are going to base our arguments to Pressure law;
According to pressure law, the pressure of a gas and its temperature are directly proportional at a constant volume

That is; P α T
Therefore, at varying pressure and temperature

$\frac{P1}{T1}=\frac{P2}{T2}$

Assuming the initial pressure, P1 is P

Rearranging the formula;

[tex]P2=\frac{P1T2}{T1}[/tex]

$P2=\frac{(P)(333.15K)}{303.15K}$

$P2 = 1.099P$

= 1.10 P

The new pressure becomes 1.10P

This means the pressure has increased by 10%

We can conclude that, the new pressure will be 1.1 times the original pressure.

You might be interested in

Which net change occurs in a nuclear fusion

kolezko [41]

Correct Answer: <span>(4) Mass is converted to energy.

Reason:
In a nuclear fusion reaction, two small nuclei are fused to formed a relatively heavy nuclei. The mass of the daughter nuclear is less as compared to parent nuclei. This difference is mass is converted into energy. The energy liberated during this process can be estimated by the Einstein's equation i.e. E = m</span> $c^{2}$ . <span> </span>

3 0

4 years ago

Fossils are used to study

ololo11 [35]

The answer is organisms that onced lived Brainly 2021

4 0

3 years ago

Read 2 more answers

During a synthesis reaction, 2.4 grams of magnesium reacted with 8.0 grams of oxygen. What is the maximum amount of magnesium ox

natali 33 [55]

Answer: The maximum amount of magnesium oxide produced during the reaction can be, 3.9 grams.

Explanation : Given,

Mass of $Mg$ = 2.4 g

Mass of $O_2$ = 8.0 g

Molar mass of $Mg$ = 24.3 g/mol

Molar mass of $O_2$ = 31.9 g/mol

First we have to calculate the moles of $Mg$ and $O_2$ .

$\text{Moles of }Mg=\frac{\text{Given mass }Mg}{\text{Molar mass }Mg}$

$\text{Moles of }Mg=\frac{2.4g}{24.3g/mol}=0.099mol$

and,

$\text{Moles of }O_2=\frac{\text{Given mass }O_2}{\text{Molar mass }O_2}$

$\text{Moles of }O_2=\frac{8.0g}{31.9g/mol}=0.25mol$

Now we have to calculate the limiting and excess reagent.

The balanced chemical equation is:

$2Mg+O_2\rightarrow 2MgO$

From the balanced reaction we conclude that

As, 2 mole of $Mg$ react with 1 mole of $O_2$

So, 0.099 moles of $Mg$ react with $\frac{0.099}{2}=0.049$ moles of $O_2$

From this we conclude that, $O_2$ is an excess reagent because the given moles are greater than the required moles and $Mg$ is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of $MgO$

From the reaction, we conclude that

As, 2 mole of $Mg$ react to give 2 mole of $MgO$

So, 0.099 mole of $Mg$ react to give 0.099 mole of $MgO$

Now we have to calculate the mass of $MgO$

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

Molar mass of $MgO$ = 40.3 g/mole

$\text{ Mass of }MgO=(0.099moles)\times (40.3g/mole)=3.9g$

Therefore, the maximum amount of magnesium oxide produced during the reaction can be, 3.9 grams.

7 0

3 years ago

28. Scott travels north 5 miles and then goes south 3 miles before coming back due north for an additional 2 miles. What is his

liubo4ka [24]

Answer:

4 miles north

Explanation:

Initially Scott travels 5 miles north at this point his displacement is 5 miles toward north

then he goes 3 miles south. which makes his displacement 2 miles (5 - 3 = 2) towards north as north and south are opposite directions.

finally he travels 2 miles due north.so his final displacement is

2 miles + 2 miles = 4 miles towards north direction

7 0

3 years ago

The amount of energy released or absorbed as heat during a chemical reaction is called ___________.

Whitepunk [10]

It’s either endothermic or exothermic

5 0

3 years ago