Comprehension Based Questions
A student wanted to apply his knowledge of thermodynamics to obtain
practical applications. He performed a number of experiments. In one
experiment, he took a a closed vessel in which he dissolved 28 gram of iron in
hydrochloric acid at 27 degree Celsius. In another experiment he dissolved the
the same amount of iron but in an open vessel. However, he compressed the
gas to 10 atm pressure at 27 degree Celsius and then again allowed to
expand it isothermally and reversibly until the pressure fell down to 1 atm. In
one case, he used the work obtained to lift a heavy body of mass 20 kg till
the pressure fell down to atmospheric pressure and in another case he used
the work obtained to heat up 1 ltr of water(Assume that hydrogen behaves
like an ideal gas).
Answer the following Questions(1 to 4) using the above passage.
1. In the first experiment the work done by the system is
a) 1246 J
b)zero
c) 2492 J
d) 11450 J
2. In the second experiment the work done by the system if the gas were not
condensed would have been nearly
a)1246J
b)zero
c) 2492 J
d) 11450 J
3. The work done by the compressed gas would be nearly
a) 1250J
b) 2500J
c) 4000J
d) 5000J
4. The height through which the body would be lifted will be
a) 1.1m
b) 2.2m
c) 4.4m
d) 6.4m
Answers
Answered by
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Answer:
6.4m is an heigerst which the body
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