How atoms are in one mole of patassuim
1 answer:
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Answer : The correct option is, (d)
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of copper =
= specific heat of water =
= mass of copper = 120 g
= mass of water = 300 g
= final temperature of mixture =
= initial temperature of copper = ?
= initial temperature of water =
Now put all the given values in the above formula, we get:
Therefore, the temperature of the kiln was,
Explanation:
The first attachment contains the complete question while the second attachment is the solution.
The volume of the gas is
Explanation:
At standard temperature and pressure (stp), the volume occupied by 1 mole of an ideal gas is always equal to
In this problem, we have an amount of moles of gas of
n = 0.034 mol
Since 1 mol of gas occupies a volume of 22.4 L, we can set up the following ratio:
where V is the volume occupied by 0.034 mol of gas. Solving for V, we find
Or, in cubic metres,
Learn more about ideal gases:
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