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ICSE Class 9 Chemistry Question 37 of 55

ICSE Questions Set in Previous Years — Question 37

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37
Question

Question 37

Define or state :

(a) Absolute temperature

(b) Boyle's law

(c) Charles' law

Answer

(a) Absolute temperature — Absolute temperature refers to the temperature measured in Kelvin or absolute scale that has its zero at -273°C (absolute zero) and whose each degree is equal to one degree on the Celsius scale.

(b) Boyle's law — Temperature remaining constant the volume of a given mass of dry gas is inversely proportional to it's pressure.

V ∝ 1P\dfrac{1}{\text{P}} [T = constant]

(c) Charles' law — Charles law states that pressure remaining constant, the volume of a given mass of dry gas increases or decreases by 1273\dfrac{1}{273} of its volume at 0°C for each 1°C increase or decrease in temperature, respectively.