Chemical Engineering — Test 196

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Question 1

During a reversible isothermal expansion of an ideal gas, the entropy change is_________________?

Question 2

Sublimation temperature of dry ice (solid CO2) is ____________ °C?

Question 3

A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is________________?

Question 4

Which of the following is not a common refrigerant ?

Question 5

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be _____________ c.c?

Question 6

The energy of activation of exothermic reaction is_________________?

Question 7

The second law of thermodynamics states that___________________?

Question 8

The absolute entropy for all crystalline substances at absolute zero temperature is ____________________?

Question 9

In the equation, PVn = constant, if the value of n = 1, then it represents a reversible _____________ process?

Question 10

For spontaneous changes in an isolated system (S = entropy) ___________________?