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katrin2010 [14]
2 years ago
8

Someone Please Help Me out

Chemistry
1 answer:
Kisachek [45]2 years ago
4 0

Answer:

where are u stuck ????

Explanation:

tell us fast

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A 7.5 L cylinder contains 5 moles of gas at a temperature of 274°C. What is its pressure in kiloPascals (kPa)?
AleksAgata [21]
<h3><u>Answer;</u></h3>

 = 3032.15 kPa

<h3><u>Explanation;</u></h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

Volume = 7.5 L, T = 274 +273 = 547 K, N = 5 moles

Therefore;

Pressure = nRT/V

               = (5 × 0.08206 × 547)/7.5 L

               = 29.925 atm

But; 1 atm = 101325 pascals

Hence; Pressure = 3032150.63 pascals

                            <u>= 3032.15 kPa</u>

               

3 0
3 years ago
above shows a balloon full of gas which has a volume of 120.0ml at 300.0k assuming pressure remains constant , what is the voume
trasher [3.6K]

128 ml  is the voume of the balloon if the temperature of the gas increases to 320.0k.

Explanation:

given that:

T1 (initial temperature) = 300K

V1 ( initial volume) =  120ml

T2 (final temperature) = 320 K

V2 (final volume) = ?

Pressure remained constant throughout the process.

From the equation

\frac{P1V1}{T1} = \frac{P2V2}{T2}

Since pressure is constant the equation will be:

\frac{V1}{T1} = \frac{V2}{T2}

V2 = \frac{V1 X T2}{T1}

    Putting the values in the above formula:

V2 = \frac{120 X 320}{300}

     = 128 ml

128 ml is the volume of the gas if temperature increases from 3OO K to 320k

4 0
3 years ago
Nitrogen dioxide gas is formed by reaction of nitrogen monoxide gas and oxygen gas
NeTakaya

Answer:

For the formation of nitrogen dioxide, the reactants used are nitrogen monoxide and oxygen gas. 2 moles of nitrogen monoxide gas react with 1 mole of oxygen gas to produce 2 moles of nitrogen dioxide gas.

Explanation:

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