Calculate the final pressure, in atmospheres, for each of the following, if the gas amount and volume are constant
a. A gas with an initial pressure of 1.20 atm at 75 oC is cooled to -32 oC
b. A sample of N2 gas with an initial pressure of 780 mmHg at -75 oC is heated to 28 oC
General Chemistry HELP!?
2016-10-24 4:52 am
回答 (2)
2016-10-24 5:02 am
✔ 最佳答案
(a)P₁/T₁ = P₂/T₂
Then, P₂ = P₁ × (T₂/T₁)
Final pressure, P₂ = (1.20 atm) × [(273 - 32)/(273 + 75)] = 0.831 atm
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(b)
As in (a), P₂ = P₁ × (T₂/T₁)
Final pressure, P₂ = (780 mmHg) × [(273 + 28)/(273 - 75)] = 1186 mmHg
2016-10-24 5:22 am
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