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rjkz [21]
3 years ago
14

If you want to raise the temperature of 200 grams of water at 20 Celsius to 30 Celsius how much water and at what temperature wo

uld you need
Chemistry
1 answer:
denpristay [2]3 years ago
5 0
Heat gained or released in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1) 

When two objects are in contact, it should be that the heat lost is equal to what is gained by the other. From this, we can calculate things. We do as follows:

Heat gained by the system = </span>mC(T2-T1)
Heat gained by the system = (200 g)  (4.18) (30 - 20)
Heat gained by the system = 8360 J<span>
Heat gained = Heat lost
 </span>8360  <span>= - mC(T2-T1) 
</span> 8360 <span> = m (4.18) (30 - T)
2000 = m (30 - T)

Since the problem above is not complete, we cannot really arrive to a definite value of mass and temperature. So, any value of mass and temperature would be the correct answer as long as it agrees the expression </span>2000 = m (30 - T).
<span>
</span>
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Answer:

The criteria listed in order of importance are;

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3 years ago
PLS HELP What is the mass of hydrogen atoms that is measured at 54 u?
tankabanditka [31]

The mass of hydrogen atoms that is measured at 54 u given the relationship is 89.64×10¯²⁴ g

<h3>Conversion scale </h3>

1 u = 1.66×10¯²⁴ g

<h3>How to determine the mass of hydrogen atoms </h3>
  • Mass of Hydrogen (u) = 54 u
  • Mass of Hydrogen (g) =?

1 u = 1.66×10¯²⁴ g

Therefore

54 u = 54 × 1.66×10¯²⁴ g

54 u = 89.64×10¯²⁴ g

Thus, the mass of the hydrogen atoms measured at 54 u is 89.64×10¯²⁴ g

Learn more about conversion:

brainly.com/question/2139943

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