1. What term is applied to the following phase change? A(g) A(s) sublimation fre
ID: 987314 • Letter: 1
Question
1. What term is applied to the following phase change? A(g) A(s)
sublimation
freezing
fusion
deposition
2.
A hypothetical substance has a melting point of -10°C and a boiling point of 155°C. If this substance heated from 2°C to the gas at 155°C, which of the following would be used in the calculation of necessary heat?
A. specific heat capacity of the solid
B. heat of fusion
C. specific heat capacity of the liquid
D. heat of vaporization
E. specific heat capacity of the gas
A hypothetical substance has a melting point of -10°C and a boiling point of 155°C. If this substance heated from 2°C to the gas at 155°C, which of the following would be used in the calculation of necessary heat?
A. specific heat capacity of the solid
B. heat of fusion
C. specific heat capacity of the liquid
D. heat of vaporization
E. specific heat capacity of the gas
A hypothetical substance has a melting point of -10°C and a boiling point of 155°C. If this substance heated from 2°C to the gas at 155°C, which of the following would be used in the calculation of necessary heat?
A. specific heat capacity of the solid
B. heat of fusion
C. specific heat capacity of the liquid
D. heat of vaporization
E. specific heat capacity of the gas
C, D
C, D, E
B, C, D
A, B, C, D, E
Explanation / Answer
1. What term is applied to the following phase change? A(g) A(s)
deposition
Deposition is a thermodynamic process, a phase transition in which gas transforms into solid.
2.
A hypothetical substance has a melting point of -10°C and a boiling point of 155°C. If this substance heated from 2°C to the gas at 155°C, which of the following would be used in the calculation of necessary heat?
heat of vaporization because substance in liquid phase which will cahnge to vapour.
and specific heat capacity of the liquid
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