An isobaric process maintains a constant system pressure, irrespective of volume and temperature alterations. Illustrative examples are:
• Gas heating or cooling within a piston-cylinder device.
• Phase transitions occurring at constant atmospheric pressure.
Further processes include:
• Isothermal: Constant temperature maintained.
• Adiabatic: No heat transfer.
• Isochoric: Constant volume maintained.
Consider the following compounds:
(i) CH₃CH₂Br
(ii) CH₃CH₂CH₂Br
(iii) CH₃CH₂CH₂CH₂Br
Arrange the compounds in the increasing order of their boiling points.
Assertion (A): The boiling points of alkyl halides decrease in the order: RI>RBr>RCl>RF.
Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass.
Arrange the following compounds in increasing order of their boiling point: \[ \text{(CH}_3\text{)}_2\text{NH, CH}_3\text{CH}_2\text{NH}_2, \text{CH}_3\text{CH}_2\text{OH} \]