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Scrat [10]
4 years ago
15

The volume of a gas with a pressure of 1.2 atm increases from 1.0 l to 4.0 l. what is the final pressure of the gas, assuming no

change in moles or temperature?
Chemistry
1 answer:
Oksana_A [137]4 years ago
3 0
Boyle's law gives the relationship between pressure and volume of gas.
for a fixed amount of gas, at constant temperature the pressure of gas is inversely proportional to its volume.
PV = k
where P - pressure, V - volume and k - constant
P1V1 = P2V2
where parameters for the first instance are on the left side and parameters for the second instance are on the right side.
substituting the values in the equation
1.2 atm x 1.0 L = P x 4.0 L 
P = 0.3 atm
new pressure is 0.3 atm
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Explanation:

7 0
3 years ago
Determine the empirical formula of kevlar, used in making bullet proof vests, is 70.6% c, 4.2% h, 11.8% n and 13.4% o.
Likurg_2 [28]

Assuming a basis of 100 g of Kevlar, therefore the masses are:

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Calculating for the moles per element:

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3 0
4 years ago
Enthalpy of <br><br> CH4(g) + 2NO2(g) -&gt; N2(g) + CO2(g) + 2H2O(l)
stira [4]

Answer:

-177.9 kJ.

Explanation:

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mars1129 [50]

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