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- 1. Multiple ChoiceWhat does the heat capacity of an object measure?the amount of energy required to change the temperature of an objectthe total amount of energy an object can storethe thermal potential energy of the objectthe amount of work done by the objectthe amount of energy required to melt a solid object
- 2. Multiple ChoiceWhen applying the first law of thermodynamics to a system, when is heat a positive quantity?when the system does workwhen the system has work done on itwhen the system absorbs heatwhen the system loses heatwhen no work is done either on the system or by the system
- 3. Multiple ChoiceThe product of the pressure and volume of a system has the same SI units as which one of the following choices?forceworkaccelerationmomentumimpulse
- 4. Multiple Choice
25 °C in kelvins
298.45 K
248.15 K
298.15 K
- 5. Multiple Choice
Calculate the volumetric flow of a system feed by water with a mass flow of 3 kg/s.
3000 kg/s
0.003 kg/s
3003 kg/s
- 6. Multiple Choice
Calculate the heat transfer to the environment if the system produce a work of 45 kJ and receive 9 kJ in the way of heat. The enthalpy difference of the system is equal to 55 kJ.
1
91
19
- 7. Multiple Choice
A 7.50 liter sealed jar at 18 °C contains 0.125 moles of oxygen and 0.125 moles of nitrogen gas. What is the pressure in the container?
7.38 atm
0.796 atm
0.684 atm
0.398 atm
- 8. Multiple ChoiceWhat is 50 °C in Kelvin?22332310050
- 9. Multiple Choice
What does R stand for
Ideal gas constant
Real gas constant
Temperature constant
Ideal gas law
- 10. Multiple Choice
Which of the following equations represents the Ideal Gas Law?
- Answer choicesTagsAnswer choicesTags