SOLUTION: The volume of given mass of a gas varies directly as its absolute temerature and inversely as its pressure. At 2 degrees C and 99 kPa, 4 g of helium occupies 23.1 L. What is the vo

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Question 328026: The volume of given mass of a gas varies directly as its absolute temerature and inversely as its pressure. At 2 degrees C and 99 kPa, 4 g of helium occupies 23.1 L. What is the volume of the helium at 27 degrees C and 121 kPa?
Answer by galactus(183) About Me  (Show Source):
You can put this solution on YOUR website!
The law states
P1%2AV1%2FT1=P2%2AV2%2FT2
We are given all but V2. So, we enter in the givens and solve for V2.
Change the temperature to Kelvin. 2 C = 275.15 K and 27 C = 300.15 K
99%2A23.1%2F275.15=121%2AV2%2F300.15
V2=20.62 L