Unit 4 SSection a study guide

# 6 the volume of a container is halved by pushing down

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and verbally (write a few sentences, right). 6. The volume of a container is halved by pushing down the attached piston. What will happen to the pressure, if temperature remains constant? _________________________________________________________________________________ 7. Calculate the new volume of a 7.0 L balloon if the pressure is reduced from 1.0 atmosphere to 0.80 atmosphere (assume the temperature remains constant). Volume =_____________________________ 7. Use kinetic molecular theory to explain Charles’ Law. _________________________________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ 205 _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _________________

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Name: _____________________________ : __________________ Period: ______ Date: ______________________ 8. What is the new volume of a 7.0 L balloon when it is brought from a location where the temperature is 30 ° C to a location where the temperature is 25 ° C (pressure remains unchanged at 1.0 atmosphere)? Volume =_____________________________ 9. Communicate the relationship between pressure and temperature of a gas graphically (left) and verbally (right). 10. How would an increase in the temperature of a gas stored in a rigid metal container impact the pressure of that gas? ___________________________________________________________________________ ___________________________________________________________________________ 11. Solve for the unknown variable in each scenario using your knowledge of the gas laws. It may be necessary to convert some temperatures to kelvins. If a box is shaded, that variable is considered to be a constant in the given scenario. P 1 V 1 T 1 P 2 V 2 T 2 Latex balloon ? 22 °C 3.40 L 51 °C Used tire 30 psi 20 °C 38 psi ? Weather balloon 104 kPa 1350 L ? 1400 L 206 _____________________________ _____________________________ _____________________________ _____________________________ _____________________________ _________________
Name: _____________________________ : __________________ Period: ______ Date: ______________________ 12. Given the following chemical reaction how many liters of N 2 are necessary to react with 5 liters of O 2 ? N 2 + 2O 2 2NO 2 Volume =_____________________________ 13. What volume would 10.0 g of gaseous CO 2 occupy at STP? Volume =_____________________________ 14. Determine the pressure exerted by 0.25 mol neon gas in a 2.75-L container at 35 °C Pressure =_____________________________ 15. What pressure will 4.5 mol of gas exert, if the gas occupies a 10.0-L container at a temperature of -20 ° C? Pressure =_____________________________ 207
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