A gas absorbs 10J of heat and is simultaneously compressed by a const and external pressure
of 0.5 atm from 4L to 2L in volume What
is the change in the internal energy.
A. 101J b. 111J c.2J d. none of the above

Given :

Heat absorbs , Q = 10 J .

Pressure ,

Initial volume , .

Final volume , .

To Find :

The change in the internal energy .

Solution :

By first law of thermodynamics :

Here , W is work done ,

Therefore,

Putting values in SI units in above equation :

Therefore , option b. is correct .

Hence , this is the required solution .

is there any options? maybe im just not seeing them but i need the options to

-love shrooms

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.