- #1

chocolatepie

- 28

- 0

**Calculating Heat Energy (HELP)**

## Homework Statement

A mixture consisting of 1.00g oxygen gas and 1.00g neon gas is trapped within a 1.0L container at an initial temperature of 298K. Calculate the heat energy required to increase the temperature of this mixture to 398K

(a) at a constant volume of 1.0L

(b) under conditions where the container is allowed to expand against a constant pressure p

_{ext}. The pressure p

_{ext}is equal to the initial pressure of the mixture at 298K.

* note: base your calculations on the equipartition theorem. (do not tabulate heat capacity values)

## Homework Equations

C=q/ΔT

Um(T)=3/2RT

**(*)**

## The Attempt at a Solution

(a) ΔU = q

_{v}when volume is constant

When using equipartition theorem

**(*)**, what should I put for temperature?

(b) ΔH = q

_{p}when pressure is constant.

Should I use formula H = U + pV to calculate ΔH?

Thanks in advance!

Last edited: