7. A movable piston contains a sample of 680 mL of neon gas with a temperature of - 5 degrees C. When the piston is heated the sample expands to a volume of 1.32 L. What is the new temperature of the neon gas?

8. A helium balloon has a volume of 2600 cm3 when the temperature is 21 degrees C. What is the volume of the balloon when it's placed in a freezer with a temperature of - 15 degrees C?

9. The Kelvin temperature of sample of 650 cm3 sample of ammonia gas is doubled. What is the new volume of the gas? Assume that the pressure stays constant.

10. A movable piston is allowed to cool from 392 degrees F to 104 degrees F. If the initial volume is 105 mL, what will be the new volume?

Question

Queen Bee

Chemistry

22 February, 14:49

7. A movable piston contains a sample of 680 mL of neon gas with a temperature of - 5 degrees C. When the piston is heated the sample expands to a volume of 1.32 L. What is the new temperature of the neon gas?

8. A helium balloon has a volume of 2600 cm3 when the temperature is 21 degrees C. What is the volume of the balloon when it's placed in a freezer with a temperature of - 15 degrees C?

9. The Kelvin temperature of sample of 650 cm3 sample of ammonia gas is doubled. What is the new volume of the gas? Assume that the pressure stays constant.

10. A movable piston is allowed to cool from 392 degrees F to 104 degrees F. If the initial volume is 105 mL, what will be the new volume?

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Answers (1)

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Frankie Owen · Answer 1

7. At constant pressure, V1/T1 = V2/T2

V1/T1 = V2/T

2680/268.15 = 1320 / T2

T2 = 520.53 K = 247.38 degrees Celsius

8. Using the same equation as number 7.

V1/T1 = V2/T

22600/294.15 = V2 / 258.15

V2 = 2281.80 cm^3

9. Using the same equation,

V1/T1 = V2/T

2650/T1 = V2 / 2T1

V2 = 1300 cm^3

10. At constant pressure, V1/T1 = V2/T2

V1/T1 = V2/T

2105/851.7 = V2 / 563.7

V2 = 69.49 mL