# Thermodynamics problems with answers

Recent questions in Thermodynamics
Passafaromx 2022-08-14

### I'm currently going through statistical physics, especially on Fermi energy when I came across a term called "quasi-continuum", what exactly is it?

Damon Campos 2022-08-13

### Is there a liquid which boils at room temperature and normal pressure, and can we use it to produce electricity?

Bierlehre59 2022-08-13

### When we are dealing with a gaseous thermodynamic system, in books it's written that state of the system can be described by only two independent variables from the three (p,V,T) . But it's not written why or how? Why we have to choose only two independent variables, why not more or less? I've gone through some answers but still unable to understand.

vrteclh 2022-08-13

### Is there an equation for convective heat transfer?

polynnxu 2022-08-11

### Why must black hole have entropy?

Leypoldon 2022-08-11

### A rigid container holds 3 of air. The air is stirred so that its pressure changes from 500kPa to 2000kPa, while its temperature is held at ${50}^{\circ }\text{C}$ . The heat transferred is 200kJ. Assume the air to behave like an ideal gas with ${c}_{v}=0.714\phantom{\rule{thinmathspace}{0ex}}\frac{\text{kJ}}{\text{kg}\cdot \text{K}}$ . Find the final temperature, the change in internal energy, and the work done.

motsetjela 2022-08-11

### How can the fugacity of this state equation:$pV/\left(nRT\right)=1+\left[b-a/\left(RT\right)\right]p/\left(RT\right)$be calculated?

pominjaneh6 2022-08-09

### A substance at 200-degree Celsius is given some amount of heat to raise its temperature by one degree Celsius and the same substance when at -200 degrees Celsius is given some amount of heat to increase its temperature to -199 degrees Celsius. Is the amount of heat required for both the processes same?

Lexi Mcneil 2022-07-22

### Scientists say that it is impossible to reach a temperature of zero kelvin, because the atoms will stop moving, and the volume of the substance will become zero, But we have reached the pico kelvin temperature, which is almost zero, and there is no difference between it and zero, so why do they say it is impossible? and The laws of physics still work at picokelvin.

Deromediqm 2022-07-20

### How does the refractive index of air rely on the temperature? Is there a theoretical derivation of it?

Bernard Boyer 2022-07-20