Question

1. What term is applied to the following phase change? A(g) → A(s) sublimation freezing fusion...

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

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Homework Answers

Answer #1

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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