According to Boyle's law, at constant temperature, the pressure of a gas is inversely proportional to its:
A. Density
B. Volume
C. Temperature
D. Mass
Answer: Option B
Solution (By JKSSB Mock Tests)
Boyle's law: P ∝ 1/V or PV = constant at constant T and n. So if volume increases, pressure decreases. This is because gas molecules have more space and hit the walls less frequently. An example is a syringe: pulling the plunger increases volume, decreases pressure.
Explanation:
The Contact process involves the oxidation of SO₂ to SO₃. The catalyst used for this step is Vanadium pentoxide (V₂O₅) or sometimes platinized asbestos. Iron is used in the Haber process, and Nickel is commonly used in the hydrogenation of vegetable oils.
Explanation:
J.J. Thomson discovered the electron in 1897 using cathode ray tubes and determined its e/m ratio. Rutherford discovered the nucleus; Chadwick discovered neutron; Bohr proposed quantized model.
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