ABORATORY 14 DETERMINING THE PROPORTIONALITY CONST 37. Convert pressur- LABORATORY 14 DETERMINING THE PROPORTIONALITY CONSTANT, R, IN THE IDEAL GAS EQUATION PARTNER SECTION DATE NAME REVIEW PROBLEMS (11) After blowing up a balloon, a student was curious what the partial pressure of each gas was in the balloon. A barometer reading indicated the total pressure was 748 mmHg. Given the molar composition of dry air is 78.08% N2, 20.95% O2,0.93% Ar and 0.04% CO,, what is the partial pressure of each gas in the balloon? 1. it 2. The compression and expansion of gases form the basis of how air is cooled by air conditioners. Suppose 1.55 L of an ideal gas under 6.38 atm of pressure at 20.5°C is expanded to 7.95 L at 1.00 atm. What is the new temperature? Answer: 236 K or -37.1°C

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