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What isothermal process?
Isothermal process is a process in which change in pressure and volume takes place at a constant temperature.
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
The dry ice will sublimate, which means it will change from a solid directly to a gas without passing through the liquid state. This process occurs due to the low temperature of dry ice (-78.5°C) compared to room temperature, causing it to transition directly to carbon dioxide gas.
Consider the phase diagram below What phase change occurs as the pressure on the sample at -50ºC is increased from 1 atm to 3 atm?
At -50°C and 1 atm, the substance is in the solid phase. With an increase in pressure to 3 atm, the phase transition will occur from the solid phase to the liquid phase.
How can one determine the change in enthalpy of a reaction?
The change in enthalpy of a reaction can be determined by measuring the heat released or absorbed during the reaction. This is typically done using a calorimeter, which allows for the precise measurement of the temperature change that occurs. The change in enthalpy is then calculated using the heat capacity of the system and the temperature change.
What does the boiling point graph reveal about the relationship between temperature and state change in a substance?
The boiling point graph shows that as temperature increases, a substance changes from a solid to a liquid, and then to a gas. The graph reveals the specific temperature at which this phase change occurs, known as the boiling point.
What isothermal process?
Isothermal process is a process in which change in pressure and volume takes place at a constant temperature.
How does ice AND water and steam change its states of matter show with diagram?
actually change of state occurs because of the absorption of kinetic energy ice on absorbing heat increases its potential energy but not kinetic energy this is the reason why change of state occurs in the constant temperature this energy taken is used to overcome their force of attraction between the molecules because of which their spaces increases leading to change of state
Indicate the type of state change that occurs between each pair of points on the following phase diagrare you to e?
The diagram needs to be seen to know what the state of change is. Not seeing the diagram makes people not able to know what the change would be.
The greatest change in temperature occurs at depths between?
0 and 1,000 m
Why use LMTD and not mean temperature difference?
Because the temperature change that occurs across the heat exchanger from the entrance to the exit is not linear, and a logarithmic function best describes this temperature change.
What is a physical change that occurs because of a decrease in temperature?
When the temperature decreases, substances can change phase from a gas to a liquid or from a liquid to a solid. This is known as condensation or freezing.
Would the volume of oxygen change if it were moved into a larger container?
It does not because change only occurs when temperature is involved.
A change of occurs during both freezing and melting?
A change in temperature occurs during both freezing and melting. Freezing and melting are physical changes since the chemical contents of the matter do not change.
What changes occur when temperature and pressure inside Earth's crust change?
Deformation occurs
Is heat only transferred if there is no temperature change?
Heat can be transferred even if there is no change in temperature. Heat transfer occurs when energy moves from a warmer object to a cooler object, leading to a change in internal energy without necessarily changing the temperature.
What is heat transfer that does not cause a temperature change?
Heat transfer that does not cause a temperature change is called latent heat transfer. This occurs when heat is absorbed or released during a change in state (solid to liquid, liquid to gas) without changing the temperature of the substance.
What is the difference between steady state and unsteady conduction?
In steady-state conduction, temperature and heat transfer remain constant with time, while in unsteady conduction, temperature and heat transfer change with time. Steady state occurs when the temperature distribution does not change over time, whereas unsteady state occurs when there is a time-dependent temperature distribution.
