Should the internal energy of a system necessarily increase if it… - Vidyadip

Question

Should the internal energy of a system necessarily increase if its temperature is increased?

✓

Answer

Internal energy of a system increases if its temperature increases. This is valid only for the system of ideal gases and not for all the systems.

For example: During meting process, temperature of the system remains constant, but internal energy change increases by mL.

$\Rightarrow\Delta\text{U}=\text{mL}$

Here,

m = Mass of the solid

L = Latent heat of the solid

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Laws of Thermodynamics→Laws of Thermodynamics — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Draw a diagram to show all the forces acting on a tanga-horse earth system and mark the action- reaction pairs in them.

Name the principle used in the mercury thermometer.

Write all three equations of motions.

Two masses in the ratio 1 : 2 are thrown vertically up with the same speed. What is the effect on the time by the mass?

Stainless steel cooking pans are preferred with extra copper bottom. Why?

Given below are some functions of x and t to represent the displacement of an elastic wave.

$\text{y}=4\sin(5\text{x}-\text{t/ 2})+3\cos(5\text{x}-\text{t/ 2})$

On what factors does the efficiency of a reversible engine depend?

Are all three types of strains possible in gases and liquid also?

Find the number of joules in a kilowatt hour.

NaCl molecule is bound due to the electric force between the sodium and the chlorine ions when one electron. of sodium is transferred to chlorine. Taking the separation between the ions to be 2.75 × 10cm, find the force of attraction between them· State the assumptions (if any) that you have made.