Equal RMS Speeds for Nitrogen and Hydrogen Molecules: Kinetic Theory Calculation

MCQMedium

Question

At what temperature is the r.m.s. speed of nitrogen molecules equal to that of hydrogen molecules at 27°C? (A nitrogen molecule is 14 times as massive as a hydrogen molecule.)

Options

  • 6000 °C

  • 5200 °C

  • 4927 °C

  • 4900 °C

  • 3000 °C

KineticTheoryGasLawsRMSspeedThermalPhysicsPhysicsMCQ

Related physics Questions(sorted by relevance)

Thermal Equilibrium Problem: Mixing 10g Steam at 100°C with 10g Ice at 0°C

Hard

10 g of steam at 100 °C is mixed with 10 g of ice at 0 °C. The final temperature of the mixture will most likely be:

PhysicsMCQThermodynamicsHeatTransfer
View

Magnification Variation with Object Distance for a Convex Lens Explained

Medium

Consider the following statements made about the magnification m of an image produced by a convex lens. As the object distance u increases:

(A) From u = 0 to u = f, m increases.

(B) From u = f to u = 2f, m decreases.

(C) From u = 2f to u = ∞, m increases.

Of the above statements:

Convex LensImage Magnification
View

Calculating Magnification of a Simple Microscope: Focal Length 5 cm & Least Distance of Vision 25 cm

Medium

A simple microscope has a convex lens of focal length 5 cm. If the least distance of distinct vision is 25 cm, the magnification of the microscope in normal adjustment is:

Simple Microscope MagnificationConvex Lens Focal Length
View

How Speaker Power Increase from 5W to 50W Affects Sound Intensity Level in Decibels

Medium

A person hears a sound intensity level of 10 dB when a speaker produces a sound output of 5 W. When the sound output of the speaker is increased to 50 W, the sound intensity level that the person hears is:

AcousticsSoundIntensity
View