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Alex Ar [27]
2 years ago
7

Please Help

Chemistry
1 answer:
Yuri [45]2 years ago
5 0
I believe it is A because a physical change is something that can be changed back to where a chemical change can not be such as burning something.
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2 years ago
25 g of 116oC steam are bubbled into 0.2384 kg of water at 8oC. Find the final temperature of the system.
Tom [10]

Answer: The final temperature of the system will be 13.14^0C

Explanation:

heat_{absorbed}=heat_{released}

As we know that,  

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]         .................(1)

where,

q = heat absorbed or released

m_1 = mass of steam = 25 g

m_2 = mass of water = 0.2384 kg = 238.4 g   (1kg=1000g)

T_{final} = final temperature = ?

T_1 = temperature of steam = 116^oC

T_2 = temperature of water = 8^oC

c_1 = specific heat of steam = 1.996J/g^0C

c_2 = specific heat of water= 4.184J/g^0C

Now put all the given values in equation (1), we get

25g\times 1.996J/g^0C\times (T_{final}-116)=-[238.4g\times 4.184J/g^0C\times (T_{final}-8)]

T_{final}=13.14^0C

Therefore, the final temperature of the system will be 13.14^0C

7 0
2 years ago
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