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Rina8888 [55]
3 years ago
15

Helppp me faststttttt plzzzzz freee points

Chemistry
2 answers:
Volgvan3 years ago
8 0

Explanation:

Where is the question.

lara [203]3 years ago
3 0
Okkk whatttt issss theeeee questionnnnnn?????
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There are two ways to liquefy a gas:

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The liquefication is faster and easier if you do both.
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if 5430 J of energy is used to heat 1.25 L of room temp. water (23.0 °C) whats the final temp of the water?
skelet666 [1.2K]

<span>We can use the heat equation,
Q = mcΔT </span>

 

<span>Where Q is the amount of energy transferred (J), m is the mass of the substance (kg), c is the specific heat (J g</span>⁻¹ °C⁻<span>¹) and ΔT is the temperature difference (°C).</span>


Density = mass / volume


The density of water = 0.997 g/mL

<span>Hence mass of 1.25 L (1250 mL) of water = 0.997 g/mL x 1250 mL</span>

<span>                                                                   = 1246.25 g</span>


Specific heat capacity of water = 4.186 J<span>/ g °C.</span>


Let's assume that there is no heat loss to the surrounding and the final temperature is T.

By applying the equation,

      5430 J = 1246.25 g x 4.186 J/ g °C x (T - 23) °C
(T - 23) °C = 5430 J / 1246.25 g x 4.186 J/ g °C
(T - 23) °C = 1.04 °C
               T = 1.04 °C + 23 °C
               T = 24.04 °C

Hence, the final temperature of the water is 24.04 °C.
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Match each group on the periodic table with its description. HELP ME PLS
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Very reactive nonmetals.
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I am a fourth period transition metal. And when you look at
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Answer:

nc

Explanation:

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