A hot air balloon is filled with hot air and the hot air forces the volume of the balloon to expand until the density of the gas in the balloon is less than the density of the outside air. The volume must be 20% larger than the balloon would be at STP in order for the balloon to float. If you double the temperature inside the balloon will it float?
I think it would float because Volume and Temp are directly proportional. You'd be doubling the volume and would end up with 50% more volume. Just want to make sure my answer is right.
1 answer
I didn't work through it but your logic is not right. When we talk about doubling the temperature, we usually think in terms of C. Remember you must convert that to kelvin and that isn't doubled.