Suppose the internal energy of an ideal gas rises by 2.89 103 j at a constant pressure of 1.00 105 pa, while the system gains 6.44 103 j of energy by heat. find the change in volume of the system.

Explanation:

According to the first law of thermodynamics:-

Where,  

U is the internal energy  =

q is the heat  = (heat is gained)

w is the work done  = ?

The expression for the calculation of work done is shown below as:

Where, P is the pressure,  

is the change in volume

Also, 1 J = 1000 PaL

So,

From the question,  

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is