Gases can be liquefied |
|||
(a) |
by increasing temperature and pressure |
(b) |
by increasing temperature and decreasing pressure |
(c) |
by decreasing temperature and increasing pressure |
(d) |
by decreasing pressure and temperature |
Gases can be liquefied |
|||
(a) |
by increasing temperature and pressure |
(b) |
by increasing temperature and decreasing pressure |
(c) |
by decreasing temperature and increasing pressure |
(d) |
by decreasing pressure and temperature |
by decreasing temperature and increasing pressure