A spherical balloon of diameter 0.5 m contains a gas at 1 bar and 300 K. The gas is heated and the balloon is allowed to expand. The pressure in the balloon is found to vary linearly with diameter. What would be the work done by the gas when the pressure inside reaches 4 bar?
@gateprep I'd recommend avoiding pinging people repeatedly to help you - it's unlikely to make them particularly well-disposed towards you. If you need help with something, make a question out of it and post it on the main site.
You'll need to include details of your problem, along with an explanation of where you're stuck and how you've tried to resolve it so far (including how that didn't work).
@gateprep You have been repeatedly told in here (e.g. here, here and here) that your insistence that people answer your homework questions is not welcome here. Since apparently mere words do not suffice to make you think, take a day off chat entirely to reflect on your behaviour here.
@enumaris The policy as written down does not really match as it is used in practice, and as it is used in practice does in turn not really match any of the proposals made for its revision over the years :P
The standard comment I leave because I feel it expressed the status quo best is:
> Please note that homework-like questions and check-my-work questions are generally considered off-topic here. We intend our questions to be potentially useful to a broader set of users than just the one asking, and prefer conceptual questions over those just asking for a specific computation.
the "we do not discourage homework questions" in the link is supposed (or maybe "nowadays interpreted"?) to mean that it's okay if you ask about your homework.
I.e. we generally do not care for the origin of a question
