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At constant pressure, a sample of helium gas has a volume of 8

Question

At constant pressure, a sample of helium gas has a volume of 800 ml at $2 7^{o} C$ . Calculate the temperature at which the volume will become 20% of its initial volume.

20 K

6 0^{o} C

150 K

- 21 3^{o} C

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At constant pressure, a sample of helium gas has a volume of 800 ml at

2 7^{o} C

. Calculate the temperature at which the volume will become 20% of its initial volume.

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Text solutionVerified

V = 800 m l; T = 2 7^{o} C = 27 + 273 = 300 K

V_{1} = 0.2 V = 0.2 \times 800 = 160 m l

\frac{V}{V _{1}} = \frac{T}{T _{1}}

\frac{800}{160} = \frac{300}{T _{1}}

T_{1} = \frac{300 \times 160}{800} = 3 \times 20 = 60 K

C = K - 273

C = 60 - 273

= - 21 3^{o} C

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Question Text	At constant pressure, a sample of helium gas has a volume of 800 ml at $2 7^{o} C$ . Calculate the temperature at which the volume will become 20% of its initial volume.
Answer Type	Text solution:1
Upvotes	150