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3 years ago

Which of these equations is balanced?

Chemistry

1 answer:

nikitadnepr [17]3 years ago

4 0

Answer:

the first is the answer

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Equal volumes of hydrogen and helium gas are at the same pressure. The atomic mass of helium is four times that of hydrogen. If

OverLord2011 [107]

Answer:

The ratio of the temperature of helium to that of hydrogen gas is 2:1.

Explanation:

Atomic mass of hydrogen = M

Temperature of hydrogen gas =T

Pressure of the hydrogen gas = P

Mass of the hydrogen gas = m

Moles of the hydrogen gas = $n=\frac{m}{2M}$

Volume of the hydrogen gas = V

Using an ideal gas equation:

$PV=nRT=PV=\frac{mRT}{M}$ ...(1)

Temperature of helium gas =T'

Pressure of the helium gas = P'= P

Mass of the helium gas = m' =m

Moles of the helium gas = $n'=\frac{m}{M'}=\frac{m}{4M}$

Volume of the helium gas = V' = V

Using an ideal gas equation:

$P'V'=n'RT'=\frac{mRT'}{4M}$ ...(2)

Divide (2) by (1)

$\frac{P'V'}{PV}=\frac{\frac{mRT'}{4M}}{\frac{mRT}{2M}}$

$\frac{T'}{T}=\frac{2}{1}$

The ratio of the temperature of helium to that of hydrogen gas is 2:1.

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