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Lady_Fox [76]
3 years ago
12

A balloon with a volume of 5.0 L is filled with a gas at 760 tore. If the pressure is reduced to 389 torr without a change in te

mperature. What will be the volume of the balloon?
Chemistry
1 answer:
icang [17]3 years ago
8 0

Answer:

V_2=9.97L

Explanation:

Hello,

In this case, we can apply the Boyle's law in order to understand the pressure-volume relationship as an inversely proportional relationship:

P_1V_1=P_2V_2

Thus, we can solve for the resulting volume at the second state as follows:

V_2=\frac{P_1V_1}{P_2}=\frac{5.0L*760torr}{389tor}  \\\\V_2=9.97L

Best regards.

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Answer:

20619.4793 years

Explanation:

The half life of carbon-14 = 5730 years

The formula for the half life for a first order kinetic reaction is:

t_{1/2}=\frac {ln\ 2}{k}

Where,  

t_{1/2} is the half life

k is the rate constant.

Thus rate constant is:

5730 years=ln(2)/k

k = 1.21×10⁻⁴ years ⁻¹

Using integrated rate law as:

ln\ \frac {A_t}{A_0}=-k\times t

Where,

A_t is the concentration at time t

A_0 is the initial concentration

Given that the final concentration contains 8.25 % of the original quantity which means that:

\frac {A_t}{A_0}=0.0825

So,

ln(.0825)= -1.21×10⁻⁴×t

<u> t = 20619.4793 years</u>

<u></u>

8 0
3 years ago
Choose the TRUE statement.
dsp73

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