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3 years ago

CHEMISTRY OuO Help please

Chemistry

1 answer:

jeka943 years ago

5 0

Answer:

This is google's answer for the last question

Explanation:

The kinetic energy increases as the particles move faster. The potential energy increases as the particles move farther apart. How are thermal energy and temperature related? When the temperature of an object increases, the average kinetic energy of its particles increases.

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Calculate the specific heat capacity of a piece of ice if 1.30 kg of the wood absorbs 6.75×104 joules of heat, and its temperatu

Gre4nikov [31]

Answer:

$c=2.0769\ \frac{J}{g\ \textdegree C}$

Explanation:

-Specific heat capacity is given by the formula:

$q=mc\bigtriangleup T$

Where:

$q$ is the heat gained or loosed by the substance

$m$ is the mass of the substance

$c$ is the specific heat of the substance

$\bigtriangleup T$ is the change in temperature

#We make c the subject of the formula and substitute to solve for it:

$q=mc\bigtriangleup T\\\\c=\frac{q}{m\bigtriangleup T}\\\\\bigtriangleup T=(57-32)\textdegree C=25\textdegree C\\\\\therefore c=\frac{6.75\times 10^4J}{1.3\times 1000\ g\times 25\textdegree C}\\\\=2.0769 \ \frac{J}{g\ \textdegree C}$

Hence, the specific heat capacity of the ice is $2.0769 \frac{J}{g\ \textdegree C}$

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3 years ago

What was the effect of decreasing the copper's mass?

kondor19780726 [428]

Answer:

Increasing the temperature of the copper made the final temperature increase and decreasing the temperature of the copper made the final temperature decrease. ... How does changing the initial mass of the copper affect how much heat energy it has? The more copper, the more heat energy.

Explanation:

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2 years ago

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Why do object change speed or direction?

Vadim26 [7]

The force upon a moving object

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3 years ago

Question 3 of 10

PIT_PIT [208]

Answer:

the moluculer formula is the answer

Explanation:

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For her school Science Fair, Alyssa designs an experiment to learn more about erosion. Her experimental set up is shown below. W

shutvik [7]

Answer:

if I am going to answer I need the set up

Explanation:

please show the set up and I will answer the question

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2 years ago