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The gas moves at a high speed inside the barrel. This reduces pressure inside the barrel.The atmospheric pressure being higher than the pressure inside the barrel forces in air into the barrel through the air hole.
Githiari answered the question on September 16, 2017 at 08:26
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Contained in a well lagged copper calorimeter....(Solved)
In an experiment to determine the specific latent heat of water, steam of 100⁰C was passed into water
Contained in a well lagged copper calorimeter. The following measurements were made:
-Mass of calorimeter =40g
-Mass of water + calorimeter = 135g.
-Final mass of calorimeter + water +condensed steam =148g
-Final temperature of the mixture =52⁰C.
Given that specific heat capacity of water = 4200Jkg^-1 k^-1
Specific heat capacity of copper = 390Jkg^-1 k^-1.
Determine the:
i)Mass of condensed steam
ii)The heat gained by the calorimeter and water if the initial temperature of the calorimeter and water
is 24⁰C
iii)Given that LV is the specific latent heat of vaporization of steam, write an expression for the heat
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iv)Determine the value of LV in (iii) above.
v)State the assumption made in the experiment.
Date posted: September 16, 2017. Answers (1)
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