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chubhunter [2.5K]

3 years ago

9

A sample of ammonia gas at 65.5°C and 524 torr has a volume of 15.31 L. What is its volume when the temperature is –15.8°C and i

ts pressure is 524 torr? 20.2 L 11.6 L 63.5 L not possible, since the volume would have to be negative 3.69 L

1 answer:

SSSSS [86.1K]3 years ago

6 0

P=const

T=65.5+273=338.5°K

T₁=273-15.8=257.2°K

V/T=V₁/T₁

V₁=VT₁/T=

$= \frac{15.31 \times 257.2}{338.5} = 11.6 \: l$

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<u>Answer:</u> The heat required for the process is 4.24 kJ

<u>Explanation:</u>

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$\Delta H_{rxn}$ = enthalpy change of the reaction = 30.7 kJ/mol

Putting values in above equation, we get:

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