# Review Homework For Gas Problems 2

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Review Homework for Gas Problems 2

Remember, SHOW MATH EQUATION AND VARIABLES FIRST

1. A gas occupies a volume of 134ml at a temperature of 138degC and pressure of 542.6mmHg. What is the new volume if the temperature increases to 294degC and the pressure increases to 845mmHg?
Name of Law: __________________

2. What is the pressure (in atm) of a oxygen gas (O2) inside a balloon that has a volume of 3.75L and a temperature of 125degC. The mass of the gas is 14.2grams. (Hint: can you change mass to another unit you need?)
Name of Law: __________________

3. At constant temperature, a gas that exerts a pressure of 1.05 atm and occupies 12.3L. If the gas is compressed (pressured increased)until its pressure is 2.29atm. What is its final volume?
Name of Law: __________________

4. A gas occupies a volume of 31.6L and is at a temperature of 235degC. If the pressure is held constant, what is the new temperature (K and degC) if the volume is reduced to 15.4L?
Name of Law: __________________

5. A gas occupies a volume of 2.15L and contains 0.178moles of gas. If the temperature and pressure is held constant, what is the new volume if gas is added so that there is now 0.765moles of gas?
Name of Law: __________________

6. A gas has a pressure of 236kPa and is at a temperature of 142degC. If the volume is held constant, what is the new temperature (K & degC)if the pressure is reduced to 112kPa?
Name of Law: __________________