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ch4aika [34]
3 years ago
14

The temperature of a sample of water increases from 20.3°C to 45.7°C as it absorbs 5609 J of heat. What is the mass of the sampl

e?
Chemistry
1 answer:
ycow [4]3 years ago
8 0

This should help :)

Example 1: A 36.0 g sample of water is initially at 10.0 °C. How much energy is required to turn it into steam at 200.0 °C? (This example starts with a temperature change, then a phase change followed by another temperature change.)

Solution:

<span>q = (36.0 g) (90.0 °C) (4.184 J g¯1 °C¯1) = 13,556 J = 13.556 kJ q = (40.7 kJ/mol) (36.0 g / 18.0 g/mol) = 81.4 kJ q = (36.0 g) (100.0 °C) (2.02 J g¯1 °C¯1) = 7272 J = 7.272 kJ q = 102 kJ (rounded to the appropriate number of significant figures) </span>
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From the balance reaction expression:

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This produces 2 mole of water on the product side of the expression.

The product is in liquid form.

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Hope this helps!

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A cylinder with a movable piston originally has a volume of 2805 mL and is filled with nitrogen to a pressure of 4.00
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<h3>Boyle's law</h3>

In chemistry, gas laws are used so as to understand the volume-pressure-temperature-moles behavior in ideal gases and relate different pairs of variables.

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Learn more about ideal gases: brainly.com/question/8711877

6 0
2 years ago
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