With an increase in the absolute temperature by 1.4 times, the volume of gas increased by 40 cm3. Find the initial volume?
| April 28, 2021 | education
Data: T2 (increase in absolute temperature) = 1.4T1; ΔV (increase in the volume of taken gas) = 40 cm3; the pressure is considered constant.
To find the initial volume of taken gas, we use the proportion: V1 / T1 = V2 / T2; V1 / T1 = (V1 + ΔV) / T2.
Substitute the known values: V1 / T1 = (V1 + 40) / 1.4T1.
1.4V1 = V1 + 40.
0.4V1 = 40.
V1 = 40 / 0.4 = 100 cm3.
Answer: The initial volume of taken gas was equal to 100 cm3.
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