Exams › NEET › Chemistry

The temperature of the gas is raised from 27°C to 927°C, the root mean square velocity is

1. √927 / 27 time the earlier value
2. same as before
3. halved
4. doubled

Correct answer: doubled

Solution

The root mean square velocity (v_rms) of a gas is proportional to the square root of its absolute temperature (T). Converting the given temperatures to Kelvin (300 K and 1200 K), the ratio of v_rms becomes √(1200/300) = √4 = 2. Thus, the velocity doubles.

Related NEET Chemistry questions

• Which of the following is a true solution?
• State in which of the following examples the force of attraction between particles of matter is almost negligible.
• Dry ice is:
• Which of the following statement about Avogadro's hypothesis is correct?
• Vapour pressure of a liquid increases with :
• Who proposed that equal volumes of gases at the same temperature and pressure have same number of molecules.

⚔️ Practice NEET Chemistry free + battle 1v1 →