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vivado [14]
3 years ago
15

All of the following are features of karst topography EXCEPT sinkholes. Disappearing and emerging streams. Caverns. Continuous s

treams.
Chemistry
1 answer:
Minchanka [31]3 years ago
4 0
D, continuous streams.
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Where does a mid ocean ridge form?
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4 years ago
A calorimeter contains 72.0 g of water at 19.2 oC. A 141 g piece of metal is heated to 89.0 oC and dropped into the water. The e
kumpel [21]

Answer:

The specific heat of the metal is 0.212 J/(g°C).

Explanation:

We can calculate the specific heat of the metal by the following equilibrium:

q_{a} = -q_{b}                          

m_{a}C_{a}\Delta T_{a} = -m_{b}C_{b}\Delta T_{b}

m_{a}C_{a}(T_{f_{a}} - T_{i_{a}}) = -m_{b}C_{b}(T_{f_{b}} - T_{i_{b}})

In the above equation, we have that the heat loses by the metal (b) is gained by the water (a).

m_{a}: is the water's mass = 72.0 g

C_{a}: is the specific heat of water = 4.184 J/(g°C)            

T_{i_{a}}: is the initial temperature of the water = 19.2 °C

T_{f_{a}}: is the final temperature of the water = 25.5 °C

m_{b}: is the metal's mass = 141 g

C_{b}: is the specific heat of metal =?

T_{i_{b}}: is the initial temperature of the metal = 89.0 °C

T_{f_{b}}: is the final temperature of the water = 25.5 °C

m_{a}C_{a}(T_{f_{a}} - T_{i_{a}}) = -m_{b}C_{b}(T_{f_{b}} - T_{i_{b}})

72.0 g*4.184 J/(g^{\circ} C)*(25.5 ^{\circ} C - 19.2 ^{\circ} C) = -141 g*C_{b}*(25.5 ^{\circ} C - 89.0 ^{\circ} C)            

C_{b} = -\frac{72.0 g*4.184 J/(g^{\circ} C)(25.5 ^{\circ} C - 19.2 ^{\circ} C)}{141 g(25.5 ^{\circ} C - 89.0 ^{\circ} C)} = 0.212 J/(g^{\circ} C)

Therefore, the specific heat of the metal is 0.212 J/(g°C).

I hope it helps you!

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The organic compounds that are the starting materials for compounds like fats and amino acids are called
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3 years ago
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