Problem 8.81 Part A What was the volume, in iters, of the balloon at these condi
ID: 552570 • Letter: P
Question
Problem 8.81 Part A What was the volume, in iters, of the balloon at these conditions, if the amount of hydrogen remains the same? In 1783, Jacques Charles launched his first balloon filled with hydrogen gas (H2). which he chose because it was ighter than air. The balloon had a volume of 35000 L at a pressure of 753 mmig and a temperature of 22 C When the balloon reached an altitude of 1000 m, the pressune Express your answer to two significant figures and include the appropriate units. V. Value Units Submit My Answers Give Up Jacques Charles used hydrogen to launch his balloon in 1783Explanation / Answer
problem81:
P1=753mmHg,V1=35,000L,T1=295k(converted to kelvin from degree)
p2=654mmHg,T2=263k(coverted to kelvin) V2=?
P1V1/T1= P2V2/T2
753*35,000/295 = 654*V2/265
V2= 753* 35,000*265/295*654
V2= 36,200L
8.45a) molar volume=22.4l
molecular weight of O2=32
so 32 g of O2 corresponds to 22.4 l of O2
so for 4.40g of O2=22.4*4.4/32 =3.08 l of O2
8.45 b)
22.4l of H2 =22400ml of H2 =2g of H2
for 1680ml of H2 gas will weigh =2*1680/22400=0.15g H2