2.B
4.C
3.D
1.C
5.C
Theses are the right answer
Answer:
30 degrees Celsius
Explanation:
With unsaturated adiabatic lapse rate water vapour does not have to change state from gaseous to liquid.
Answer:
(a) Initial volume will be 7.62 L
(b) Final temperature will be 303.85 K
Explanation:
We have given one mole of ideal gas done 3000 J
So work done W = 3000 J
Let initial volume is
and initial pressure
( As pressure is constant )
Final volume
= 0.025 
Number of moles n = 1
(B) From ideal gas of equation we know that 
So 
T = 303.85 Kelvin
(B) For isothermal process work done is equal to





So initial volume will be 7.62 L
Light travels<span> as a </span>wave<span>. But unlike sound </span>waves<span> or water </span>waves<span>, it does not need any matter or material to carry its energy along. This means that </span>light<span> can </span>travel<span> through a vacuum—a completely airless space.</span>