500 mL of He at 300 K is heated to 450 K. Find V2

Question

Juliana Holt

Chemistry

20 December, 14:46

500 mL of He at 300 K is heated to 450 K. Find V2

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Answers (1)

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Rowan Bullock · Answer 1

V2 = 0.75 L

Explanation:

assumin ideal gas:

PV = RTn

∴ T1 = 300K

∴ V1 = 0.500 L

∴ T2 = 450 K

⇒ V2 = ?

assuming P, n constant:

⇒ PV1 = RT1n

⇒ V1/T1 = Rn/P = K ... (1)

⇒ V2/T2 = RN/P = K ... (2)

(1) = (2):

⇒ V1/T1 = V2/T2

⇒ V2 = (V1/T1) T2

⇒ V2 = (0.500 L/300 K) (450 K)

⇒ V2 = 0.75 L