When filling a weather balloon with gas you have to consider that the gas will expand greatly as
it rises and the pressure decreases. Let’s say you put about 9.00 moles of He gas into a balloon that
can inflate to hold 3000.0 L. Currently, the balloon is not full because of the high pressure on the
ground. What is the pressure when the balloon rises to a point where the temperature is -15.°C and
the balloon has completely filled with the gas.
Answers: 2
Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
Chemistry, 23.06.2019 02:50
What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.
Answers: 3
Chemistry, 23.06.2019 11:30
Which part of the healthcare system could best explain how a pharmaceutical drug works
Answers: 2
When filling a weather balloon with gas you have to consider that the gas will expand greatly as
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