Bumalik sa Quiz Gallery
Kimika
Baitang 10–12
Thermochemical reactions
Ibinahagi ni Karma Lhamo
1 araw ang nakalipas
21 T
Nakuha nang 0 beses
Mag-sign up nang libre para i-adopt ang quiz na ito
Preview ng Mga Tanong
Ipinapakita ang unang 5 sa 21 tanong — mag-sign up nang libre para i-adopt ang buong quiz at laruin ito kasama ng klase mo.
1
What does the Law of Conservation of Energy state?
A
Energy is only conserved in chemical reactions.
B
Energy always increases in a closed system.
C
Energy can be transformed from one form to another but cannot be created or destroyed.
D
Energy can be created and destroyed.
2
Which of the following best defines internal energy (E) of a system?
A
The total kinetic energy of the system's particles.
B
The sum of all kinetic and potential energies of the particles in the system.
C
The energy required to break all bonds in the system.
D
The total potential energy of the system's particles.
3
In thermodynamics, what does the sign convention for change in internal energy (ΔE) indicate when ΔE is positive?
A
The system has done work on the surroundings.
B
The system has gained energy from the surroundings.
C
The system has lost energy to the surroundings.
D
The system's temperature has decreased.
4
Which of the following is the correct definition of enthalpy (H)?
A
H = E - PV
B
H = E / PV
C
H = PV - E
D
H = E + PV
5
In a graphical representation of enthalpy change, what does the vertical distance between the initial and final enthalpy levels represent?
A
The activation energy of the reaction.
B
The internal energy change of the reaction.
C
The entropy change of the reaction.
D
The change in enthalpy (ΔH) of the reaction.
Gusto mo bang gamitin ang mga handang quiz na ito?
Mag-sign up sa SparkMyClass nang libre, mag-adopt ng quiz sa isang click, at gumawa ng sarili mong interactive na quiz games.
Mag-sign Up Nang Libre