Combined Gas Law 1- If I have 15 liters of gas at a temperature of 82 0C and a pressure of 65.50 atm, what will be the pressure of the gas if I raise the temperature to 90 oC and decrease the volume to 15 liters?

2- I have an unknown volume of gas at a pressure of 0.8 atm and a temperature of 328 K. If I raise the pressure to 0.9 atm, decrease the temperature to 550 K, and measure the final volume to be 68 liters, what was the initial volume of the gas?

3- If I initially have a gas with a pressure of 85 kPa and a temperature of 34 C and the temperature changes to 28 degrees Celsius , what will the new pressure be?

4-A toy balloon filled with air has an internal pressure of 1.09 atm and a volume of 2.50 L. If I take the balloon to the bottom of the ocean where the pressure is 0.95 atmospheres, what will the new volume of the balloon be?

5-A 5.8L cylinder with a gas is under 1.09 atm of pressure. At 35.6 Celsius degrees the same gas has a pressure of 2.48 atm. What is the initial temperature of the gas.