Kembali ke Galeri Kuis
Kimia
Kelas 10–12
Thermochemical reactions
Dibagikan oleh Karma Lhamo
1 hari yang lalu
21 Soal
Diambil 0 kali
Daftar gratis untuk memakai kuis ini
Pratinjau Soal
Menampilkan 5 dari 21 soal — daftar gratis untuk mengambil kuis lengkapnya dan memainkannya bersama kelas Anda.
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.
Ingin memakai kuis siap pakai ini?
Daftar SparkMyClass gratis, ambil kuis dengan sekali klik, dan buat permainan kuis interaktif Anda sendiri.
Daftar Gratis