A closed vessel contains 10 g of an ideal gas X at 300 K, which exerts 2 atm pressure. At the same temperature, 80 g of another ideal gas Y is added to it and the pressure becomes 6 atm. The ratio of root mean square velocities of X and Y at 300 K is (IIT Adv 2024 Paper-1)

 

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (HNO2) gives the species ( IIT Advanced 2014 paper-1)

 

Aspartame, an artificial sweetener, is a dipeptide aspartyl phenylalanine methyl ester. The structure of aspartame is (JEE (Advanced) 2024 Paper-1)

 

A gas absorbs 100 J of heat and is simultaneously compressed by a constant external pressure of 1.50 atmospheres from a volume of 8 L to 2 L. E will be

 

One mole of an ideal gas at 300Kis expanded isothermally from an initial volume of 1 litre to 10 litres. (R = 2 cal mol^–1 K^–1). E for the process is