7.84 g of argon gas at an initial pressure of 4.34 atm and at 16°C undergo an isobaric expansion until the volume has increased in five times.
a) What is the volume of the gas after expansion?
b) What is the gas temperature after the expansion?
c) The gas pressure is then decreased at constant volume until the original temperature is reached. What is the gas pressure after the decrease?
d) Finally, the gas is isothermally compressed until it returns to its normal initial volume. What is the gas final pressure?