Are you ready for some brain exercise?

You are still a hatchling

Welcome to the Chicken Round!

Answer the following questions to reach chickenhood.Be careful not to be roasted or fried along the way.

Start now before they make you into a street food. Go!

You have 20 seconds to read this

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What is the formula for enthalpy if the pressure is kept constant?

Chicken Round

Unlock the answer proceed

It is the sum of the internal energy of the system plus the product of the pressure of the gas in the system

and its volume

Enthalpy of ReactionEnthalpy Enthalpy of Formation

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Enthalpies of formation of elements at standard conditions are equal to zero

TrueFalse

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What enthalpy change is this?

Hc,m [(graphite)] = -393.5 kJ/mol

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4

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Write the chemist’s shorthand for enthalpy of fusion

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5

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Write the chemist’s shorthand for enthalpy change of atomisation

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6

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Write the chemist’s shorthand for enthalpy change formation

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7

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The enthalpy change when 1 mole of liquid is converted to one mole of gas at its boiling point at

standard pressure is enthalpy change of fusion

TrueFalse

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8

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What is the science of measuring heat?

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9

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What is the amount of heat required to raise its temperature by a given amount?

CalorimetryHeat capacitySpecific heat capacity

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10

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It gives the specific heat capacity per unit mass of a particular substance

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CalorimetryHeat capacitySpecific heat capacity

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SI unit for heat capacity is J/kgK

TrueFalse

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12

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The SI unit for heat capacity is…

J/kgKJ/KJ/goC

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13

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What is the formula for specific heat capacity?

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14

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What is the formula for molar enthalpy of a substance?

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15

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What law states that the heat absorbed or released during a reaction is the same whether the reaction

occurs in one or several steps?

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16

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Who formulated the law in number 17?

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17

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H sys = q (at constant pressure)

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Enthalpy

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It’s TRUE!

Chicken Round

Enthalpy change of combustion

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4

chemist’s shorthand for enthalpy of fusion

Hfus,m

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5

chemist’s shorthand for enthalpy change of

atomisation

Hat,m

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6

I didn't know you can sing and dance. Good job!

chemist’s shorthand for enthalpy change of formation

Hf,m

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7I didn't know you can sing and dance. Good

job!

It’s false.

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8No, you’re not. You’re just

jumping. Don’t get your hopes to high.

Look! I’m flying. I’m

flying!

Calorimetry

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9Yeah! I know you got it. It’s

too easy anyway.

I got it!I got it!

Heat capacity

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10So you’ve made a friend.Keep answering right and

you’ll gain more.

Specific heat capacity

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11“I keep on rockin, rockin up on the floor... Na na na

na na na…”

Correct!

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12

J/K

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13

q= mcT

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14

H= mcTn

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15Let’s do the

chicken dance

Hess’s Law of Heat Summation

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16Good job! Keep it up.

Germain Henri Hess

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17

Click to end the test

Aw! Come on you can do better than that.

Chicken Round

Chicken Round

Hmm… Smells great. You’re roasted!

Chicken Round

Try again

Chicken Round

You need more exercise

Chicken Round

Better luck next time

Chicken Round

You’re fried, chicken!Um, Yum! You look so crunchy.

Chicken Round

Congratulations! You passed the chicken round.

You are now a fully grown chicken ready to be roasted. Are you ready for the next round?