E-PolyLearning

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

47. Joule Thomson effect describes gases'
a. contraction
b. sudden expansion
c. expansion
d. relaxion
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Answer: (b).sudden expansion

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

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

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