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stiv31 [10]
2 years ago
12

How would you solve this?

Chemistry
1 answer:
Lubov Fominskaja [6]2 years ago
6 0
I’m sorry but I did not understand the question
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statuscvo [17]

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In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be
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What super power would you want to have and why?<br><br> I will give Brainly to the best answer
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2 years ago
The burning of a sample of propane
r-ruslan [8.4K]

Answer:

70.0°C

Explanation:

We are given;

  • Amount of heat generated by propane as 104.6 kJ or 104600 Joules
  • Mass of water is 500 g
  • Initial temperature as 20.0 ° C

We are required to determine the final temperature of water;

Taking the initial temperature is x°C

We know that the specific heat of water is 4.18 J/g°C

Quantity of heat = Mass × specific heat × change in temperature

In this case;

Change in temp =(x-20)° C

Therefore;

104600 J = 500 g × 4.18 J/g°C × (x-20)

104600 J = 2090x -41800

146400 = 2090 x

  x = 70.0479

     =70.0 °C

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3 years ago
Calculated from measurements of distance and time defined
prisoha [69]

Answer:

Any of the six chemical elements that markup group1

of the periodic table.

Explanation:

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