| 46. | To prove charle's law temperature is taken in |
| a. | high temperature |
| b. | Fahrenheit scale |
| c. | Kelvin scale |
| d. | centigrade scale |
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Answer: (c).Kelvin scale
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| 47. | Joule Thomson effect describes gases' |
| a. | contraction |
| b. | sudden expansion |
| c. | expansion |
| d. | relaxion |
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Answer: (b).sudden expansion
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| 48. | R is known as |
| a. | molar gas constant |
| b. | volume constant |
| c. | pressure constant |
| d. | temperature constant |
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Answer: (a).molar gas constant
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| 49. | In deducing Graham's law of diffusion constant is |
| a. | under root of 3P |
| b. | under root of 4V |
| c. | under root of 6P |
| d. | under root of 4P |
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Answer: (a).under root of 3P
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| 50. | Boyle's law is used only for |
| a. | non ideal gases |
| b. | light gases |
| c. | ideal gases |
| d. | heavy gases |
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Answer: (c).ideal gases
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