ChE 123: Refrigeration and Liquefaction (2)

Question 1

a process where the gas is alternately compressed, cooled, and expanded

Answer 1

linde-liquefaction process

Question 2

Heat exchange at constant pressure uses _________ at a temperature lower than that to which the gas is cooled

Answer 2

heat sink

Question 3

different methods in accomplishing liquefaction

Answer 3

1. Heat exchange at constant pressure
2. Expansion process from which work is obtained
3. Throttling process

Question 4

A suffix with a lower case letter such as a, b, or c indicate an?

Answer 4

isomer

Question 5

composed of four numbers after the prefix “R-”

Answer 5

the numbers

Question 6

For a gas to undergo liquefaction through ________________, its temperature must be sufficiently low and its pressure should be sufficiently high.

Answer 6

throttling

Question 7

The second number from the right equals one plus the number of ____________ atoms per molecule.

Answer 7

hydrogen

Question 8

A suffix with an upper case B and a number indicates the number of _______________ atoms. Omit if none

Answer 8

Bromine

Question 9

The fourth number (uncommon) from the right equals the number of _______________ in the molecule. Omitted when zero.

Answer 9

double bonds

Question 10

Temperature of most of the gases reduces after expansion

Answer 10

linde-liquefaction process

Question 11

In small-scale commercial liquefaction plants, this is commonly employed as the liquefaction process.

Answer 11

throttling

Question 12

it is a process of cooling a gas or solid to turn it into liquid

Answer 12

liquefaction

Question 13

The right most number equals the number of ___________ atoms per molecule. Zero if none

Answer 13

Fluorine

Question 14

The third number from the right equals the number of _____________ atoms minus one. Omit if zero.

Answer 14

carbon

Question 15

this process uses a turbine to recover work and increase
efficiency

Answer 15

claude liquefaction process