angeldevil9519 angeldevil9519

14-08-2020
Chemistry

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A balloon of helium occupies 11.5 L at 23.0 °C and 755 mmHg. What temperature was it initially, if it occupied 8.75 L and was in a freezer with a pressure of 712 mmHg?

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durugonnenna durugonnenna

25-08-2020

Answer:

T1 = 210.2K

Explanation:

23°C ----293K

V1P1/T1 = V2P2/T2

8.75×712/T1 = 11.5×755/293

6230/T1 = 8682.5/293

T1 = 210.2K

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