15. A gas is placed in a container at a certain pressure and then conditions cha

Question

15.      A gas is placed in a container at a certain pressure and then conditions change so that the pressure is doubled. Which of the following changes would double the pressure?

1. Doubling the volume.
2. Reducing the volume to one-half.
3. Doubling the temperature (Kelvin scale).
4. Reducing the temperature (Kelvin scale) to one-half.
5. Both the volume and temperature (Kelvin scale) would need to be changed at the same time.

A. 2 or 3

B. 1 or 3

C. 1 or 4

D. 2 or 4

E. 5

A. 2 or 3

B. 1 or 3

C. 1 or 4

D. 2 or 4

E. 5

Explanation / Answer

A. 2 or 3

2. Reducing the volume to one-half.

P1V1=P2V2

P2=2P1

V2=V1/2

3. Doubling the temperature (Kelvin scale).

P1/T1=P2/T2

P2=2P1

T2=2T1

A. 2 or 3

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