An Ideal Gas System Changes from State I to State

question 61

Multiple Choice

An ideal gas system changes from state i to state f by paths iaf and ibf. If the heat added along iaf is Q_iaf = 50 cal, the work along iaf is W_iaf = 20 cal. Along ibf, if Q_ibf = 40 cal, the work done, W_ibf, is

• A) 10 cal
• B) 20 cal
• C) 30 cal
• D) 40 cal
• E) 50 cal

---

Definitions:

Mann-Whitney U

A nonparametric test used to compare differences between two independent samples.

Wilcoxon Rank Test

A non-parametric statistical test used to compare two related samples to determine if their population means ranks differ.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution without violating any constraints.

Obtained Value

The actual measured or computed value from a statistical analysis or experiment.