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12. A helium balloon with an internal pressure of 1.00 atm and a volume of 4.50 L at 20.00 C is released. What volume will the balloon occupy at an altitude where the pressure is 0.600 atm and the temperature is –20.00 C?
12. A helium balloon with an internal pressure of 1.00 atm and a volume of 4.50 L at 20.00 C is released. What volume will the balloon occupy at an altitude where the pressure is 0.600 atm and the temperature is –20.00 C?
===Answer===
p1v1/nRt1=p2v2/nRt2
v2:=p1*v1*t2/t1*p2
v2:=((p1<>atm)*(v1<>l)*(t2<>K))/((t1<>K)*(p2<>atm))
v2(1,4.5,-20,20,0.6)<>l
= 7.5l
13. How many moles of gas occupy 98 L at a pressure of 2.8 atmospheres and a temperature of 292 K?
13. How many moles of gas occupy 98 L at a pressure of 2.8 atmospheres and a temperature of 292 K?