Answer : The specific heat of the metal is,
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 metal = ?
= specific heat of water =
= mass of metal = 75 g
= mass of water =
= final temperature of mixture =
= initial temperature of metal =
= initial temperature of water =
Now put all the given values in the above formula, we get
Therefore, the specific heat of the metal is,
Answer:
Pb(s), Sn(s), Cu(s), Fe(s), Al(s)
Explanation:
The specific heat (Cp) of a substance is defined as the heat required per unit of mass to raise the temperature in 1°C.
Thus, the substance with the larger Cp will need more energy to reach a temperature and vice versa.
Based on this information, the fastest metal to reach 80°C will be Pb -lowest Cp-, then Sn, Cu, Fe and Al.
From 1 to 5:
<em>Pb(s), Sn(s), Cu(s), Fe(s), Al(s)</em>
Answer:
A. Team B applies the same force as Team A.
Explanation:
If one team was applying more or less force, the rope would move towards the team with the most amount of force applied.
Hope this helped : )
Hello there.
<span>Lactic acid fermentation occurs in
Answer: </span><span>c. muscle cells.
</span>
Answer:
i=1.62 .
Explanation:
Let, i be the Van't Hoff Factor.
Moles of benzamide,=
Molality of solution, m=
Now, we know
Depression in freezing point, .....1
It is given that,
Putting all these values we get,
Now, moles of ammonium chloride=
molality =
Putting all these values in eqn 1.
We get,
i=1.62 .
Hence, this is the required solution.