Thermal Physics

Thermal Physics - PHYS 258 - Thermal Physics: Student ID:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYS 258 - Thermal Physics: Assignment 1 Due Monday January 17 Student ID: Last Name: Score: /12 ________________________________________________________________ 1. Short answer questions: (1) a) A thermometer is placed in intergalactic space. What temperature does it read? Briefly explain (find answer in the internet). (hint: it is not zero) (0.5) (b) Prove that the volume thermal expansion coefficient of a solid is equal to the sum of its linear expansion coefficients in the three directions: β = α x + α y + α z . (0.5) Estimate the speed of oxygen molecules in your room. Calculate the mass of a mole of: (0.5) a) Nitrogen, N 2 (0.5) b) Oxygen, O 2 (0.5) c) Argon, Ar (0.5) d) Air, which is a mixture of N 2 (78% by volume), O 2 (21%), and argon (1%)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. Volume Thermal Expansion. Near room temperature, when the temperature of liquid mercury increases by one degree Celsius, its volume increases by one part in 5500. (1)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Thermal Physics - PHYS 258 - Thermal Physics: Student ID:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online