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Thermochemistry & Nuclear Chemistry Review
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10th grade
Chemistry
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22 slides

Thermochemistry & Nuclear Chemistry Review

Body text
View
Q.

______________ is the average kinetic energy of particles.

answer choices

Temperature

thermal rate

reaction rate

kinetic force

View
Q.

If kinetic energy increases, ____________ will also increase?

answer choices

Temperature

acidity

basicity

View
Q.

A 24.0 gram sample of copper was heated from 25.0oC to 500.0oC, 4378J of heat were absorbed, what is the specific heat of copper?

answer choices

.384

49909200

2.60

8.77

Q. What kind of energy is in a moving skateboard?
answer choices
Potential
Kinetic
Both potential and kinetic energy
none of the above
View
Q.

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams?

answer choices

12.82 °C

24.12°C

351 °C

View
Q.

How much heat does an aluminum block absorb if 10.00 grams is heated from 25.0oC to 50.0oC? the specific heat of aluminum is .900J/goC

answer choices

450

-450

225

-225

Q. Define 'Enthalpy'
answer choices
a) Energy stored in the movement of molecules in a substance
b) The opposite of temperature
c) The temperature of a molecule
d) Energy stored in the chemical bonds in a substance
Q. ΔH value in an endothermic reaction is a positive number.
answer choices
True
False
View
Q.

Kinetic energy is the energy of motion.

answer choices

True

False

Q.

Potential energy is stored energy.

answer choices

True

False

View
Q.

The amount of heat energy required to change the temperature of 12 g of gold from 45°C to 15°C is -47 J. What is the specific heat capacity of gold?

answer choices

0.13 J/(g°C)

17,000 J/(g°C)

1600 J/(g°C)

0.065 J/(g°C)

View
Q.

Define 'Enthalpy'

answer choices

a) Energy stored in the movement of molecules in a substance

b) The opposite of temperature

c) The temperature of a molecule

d) Energy stored in the chemical bonds in a substance

Q. A measure of the average kinetic energy of a substance.
answer choices
heat
temperature
enthalpy
entropy
View
Q.

If the enthalpy (ΔH) is negative the reaction is ____.

answer choices

Endothermic

Exothermic

Neutral

Q. Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.
answer choices
Fusion
Fission
Tracing
Decay
Q. A nuclear reaction where a nucleus splits into two smaller nuclei is... 
answer choices
Fission
Fusion
Gamma decay
Beta decay
Q. What is another name for an alpha particle?
answer choices
electron
x-ray
hydrogen nucleus
helium nucleus
Q. The least penetrating form of radiation is...
answer choices
alpha
beta
gamma
neutron
Q. The charge on a gamma particle is...
answer choices
-1
0
+1
+2
Q. What particle completes this reaction?
answer choices
alpha particle
beta particle
gamma particle
neutron
Q. What is the change in atomic mass when an atom emits a neutron?
answer choices
0
+1
-1
-2
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