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Questions and Answers
In calorimetry, a system is said to be isolated if ____________.
In calorimetry, a system is said to be isolated if ____________.
- the system is in thermal equilibrium
- there is no change in temperature
- the system is at a constant temperature
- no heat exchange occurs between the system and its surroundings (correct)
What is the purpose of the outer jacket in a calorimeter?
What is the purpose of the outer jacket in a calorimeter?
- To reduce heat loss from the inner vessel (correct)
- To hold the metallic vessel in place
- To provide structural support
- To increase heat transfer to the surroundings
Which gas has the highest molar specific heat capacity among the listed gases?
Which gas has the highest molar specific heat capacity among the listed gases?
- H2
- He
- N2
- CO2 (correct)
What is the principle used when determining the specific heat capacity of a solid using calorimetry?
What is the principle used when determining the specific heat capacity of a solid using calorimetry?
Which material has the highest specific heat capacity among ice, glass, iron, kerosene, edible oil, and mercury?
Which material has the highest specific heat capacity among ice, glass, iron, kerosene, edible oil, and mercury?
What is the function of the metallic vessel in a calorimeter?
What is the function of the metallic vessel in a calorimeter?
What type of system is described in the text when a copper calorimeter containing hot water is placed inside a double-walled vessel?
What type of system is described in the text when a copper calorimeter containing hot water is placed inside a double-walled vessel?
According to the information provided, why is the graph of log e (T2–T1) against time a straight line with a negative slope?
According to the information provided, why is the graph of log e (T2–T1) against time a straight line with a negative slope?
What is the significance of Eq. 10.22 mentioned in the text?
What is the significance of Eq. 10.22 mentioned in the text?
In Example 10.8, when a pan filled with hot food cools from 94 °C to 86 °C in 2 minutes, what is the average temperature change per minute?
In Example 10.8, when a pan filled with hot food cools from 94 °C to 86 °C in 2 minutes, what is the average temperature change per minute?
What role does the specific heat capacity constant 'K' play in the cooling process described in Example 10.8?
What role does the specific heat capacity constant 'K' play in the cooling process described in Example 10.8?
What is the primary factor that allows heat to flow according to the text provided?
What is the primary factor that allows heat to flow according to the text provided?
What is the specific heat capacity of water in J kg^-1 K^-1?
What is the specific heat capacity of water in J kg^-1 K^-1?
What is the specific heat capacity of copper in J kg^-1 K^-1?
What is the specific heat capacity of copper in J kg^-1 K^-1?
In calorimetry, what principle states that the heat lost by one object equals the heat gained by another?
In calorimetry, what principle states that the heat lost by one object equals the heat gained by another?
What is the specific heat capacity of the aluminium sphere in kJ kg^-1 K^-1?
What is the specific heat capacity of the aluminium sphere in kJ kg^-1 K^-1?
What is the change in temperature (∆T2) of the water and calorimeter in degrees Celsius?
What is the change in temperature (∆T2) of the water and calorimeter in degrees Celsius?
What is meant by a 'change of state' in thermodynamics?
What is meant by a 'change of state' in thermodynamics?
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