First Law of Thermodynamics — Quiz

Question 1

A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy.

Revolt · Accepted Answer

480

Question 2

A piston uses 32 J of energy to do work as 68 J of heat are added to the cylinder of the piston.

Revolt · Accepted Answer

36

Question 3

A steam turbine is a device in which high-pressure steam enters the turbine and causes blades to spin. The spinning blades have mechanical energy. Which best describes what happens in this system?

Revolt · Accepted Answer

Some of the heat used to make the steam is transformed into work as the steam pushes against the blades to make them turn.

Question 4

Which best describes a characteristic of an adiabatic process?

Revolt · Accepted Answer

All heat added to the system is transformed into work.

Question 5

Three hundred joules of heat are added to a system. The system uses 140 joules to do work. By how much did the internal energy of the system change?

Revolt · Accepted Answer

160 J

Question 6

In the formula used to solve problems related to the first law of thermodynamics, what does cap q represent?

Revolt · Accepted Answer

heat

Question 7

Five hundred joules of heat are added to a closed system. The initial internal energy of the system is 87 J, and the final internal energy is 134 J. How much work is being done by the system?

Revolt · Accepted Answer

453 J

Question 8

A system uses 49 J of energy to do work, and the change in internal energy is ​​​​​​​58 J. How much heat was added to the system?

Revolt · Accepted Answer

107 J

Question 9

Which formula can be used to solve problems related to the first law of thermodynamics?

Revolt · Accepted Answer

cap q is equal to triangle cap u plus cap w

Question 10

Question 10

Revolt · Accepted Answer

[Dropdown 1] mechanical energy; mechanical energy

First Law of Thermodynamics — Quiz Answers

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