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PTEC C116 Instrumentation 1 - Module 01 Written Exercise 5 points Process variables affect each other on a continuous basis and processes are designed to accounts for these dependences. The exercises below will help you to apply what you've learned about the relationships between process variables, such as pressure, temperature, level, and flow. Exercise #1: The relationship between temperature and pressure in a closed vessel The temperature inside a closed vessel 1s 70 degrees F and the pressure of the contained gas is atmospheric pressure (14.7 PSIA). 1. If the temperature increases to 100 degrees, what is the pressure (measured in PSIA) inside the vessel? Show the equation and your calculations below. 2. What 1s the pressure measured in PSIG at 70 degrees? 3. What 1s the pressure measured in PSIG at 100 degrees? 4. A fluid 1s pumped into a closed vessel at 65 degrees F. After the vessel is filled, the pressure is increased from 14.7 PSIA to 29.4 PSIA. What 1s the temperature of the pressurized fluid? Show the equation and your calculations below