Thermodynamics: Thermal Equilibrium Calculations

What is the initial temperature of the steel if the water gains 64,790 joules of energy?

• 100 degrees Celsius

• 25 degrees Celsius

• 245 degrees Celsius

• 20 degrees Celsius

According to the first law of thermodynamics, what happens when a system gains energy?

• The system remains unchanged

• The system loses energy

• Work is done on the system

• The system gains mass

In the example with water and aluminum, what is the final temperature reached?

• 18 degrees Celsius

• 22.9 degrees Celsius

• 90 degrees Celsius

• 25 degrees Celsius

What is the mass of the aluminum block used in the second example?

• 3.5 kilograms

• 3.1 kilograms

• 1.2 kilograms

• 0.6 kilograms

What is the initial temperature of the water in the second example?

• 22.9 degrees Celsius

• 20 degrees Celsius

• 25 degrees Celsius

• 18 degrees Celsius